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HomeMy WebLinkAbout8 - Shoreland Management Ordinance 93-02 Public Hearing AGENDA NUMBER: PREPARED BY: SUBJECT: DATE: INTRODUCTION: BACKGROUND: DISCUSSION: 8 DEB GARROSS, ASSISTANT CITY PLANNER CONSIDER APPROVAL OF SHORELAND MANAGEMENT ORDINANCE 93-01 FEBRUARY 16, 1993 The purpose of this hearing is to discuss the draft shore1and management ordinance and amend the current Zoning Code to incorporate the new draft. Shoreland management rules have been promulgated by the Mlnnesota Department of Natural Resources (DNR). The City of Prior Lake is required by the DNR to adopt revised shoreland management regulations that are consistent with the State Rules. The DNR notified the City of Prior Lake that the new rules must be adopted by the city by March 4, 1993. The City council held a joint workshop to discuss the draft on November 12, 1992. The Planning Commission held public hearings on January 21 and February 4, 1993. The attached materials include a draft shoreland management ordinance prepared by Steve Grittman, of Northwest Associated Consultants, Inc. Also attached find an addendum which outlines the recommended changes developed by the Planning Commission. Allan Hunting of Northwest Associated Consultants, Inc. will be present at the hearing to discuss detailed questions relative to the proposed draft. The most controversial issue related to shoreland management has been the DNR position to require the combination of substandard lots under one ownership, for building purposes. The draft contains new language related to substandard lots of record. Staff has been advised by the DNR that Prior Lake will not have to require lot combinations in areas where assessments for sewer and water have been paid. Substandard lots in the Rural Service Area will have to be combined for building purposes. 4629 Dakota St. S.E., Prior lake, Minnesota 55372 / Ph, (612) 4474230 / Fax (612) 447-4245 AN EQUAL OPPORTUNITY EMPLOYER The city council should take note of sections of the draft that are underscored or highlighted. Those areas are changes to the draft developed by Northwest Consultants based upon input from the workshop, staff and preliminary DNR review of the ordinance. The attached addendum from the Planning Commission further stipulates changes recommended by the Commission for adoption of the ordinance. staff has incorporated Prior Lake definitions and zoning regulations into the draft where possible to eliminate duplication of ordinance provisions. Pages 13 - 15, include a new set of restrictions for island development within the community. The standards are based upon a 1979 City Council resolution that formerly applied only to Twin Island. Page 23, item 7, stipulates that Prior Lake, by resolution has defined a program to identify non-conforming sewage treatment systems. Proposed Resolution 93-08 is attached for Council review. Page 37, item 1, stipulates standards for development of substandard lots. This set of provisions was substantially changed by the Planning commission as outlined on the addendum. The provisions differ significantly from the existing shoreland regulations. This section stipulates that a lot of record must be at least 50 feet in width and contain lot area equal to or greater than 7,500 square feet. Lots that are smaller "shall not be considered as a separate parcel for development purposes but may be used for open space or accessory uses as permitted in the zoning district." There are 9 standards that must apply to development of substandard lots. The intent is to provide objective criteria, in ordinance form, that will be used by the City to evaluate development on substandard lots. The City currently uses somewhat subjective criteria via the variance process to evaluate construction on substandard lots. staff is of the opinion that the 9 conditions will give the City greater control over development and also notify people in advance, of the objectives that will need be demonstrated in order to build upon a substandard lot. Item 10, provides that lots 50' or less in width may utilize one 5' setback provided conditions (a - e) are met. This provision was developed by staff in order to limit variance applications. It is the intent to allow some design flexibility on substandard lots, in an attempt to discourage multiple variances on one lot. Provided an applicant can desi9n a structure meeting items (a - e), one 5' s1de yard setback may be utilized. In the event that all of the items cannot be met, the applicant would be required to submit a variance application. Staff is of the opinion that the established precedent and multiple variances granted for substandard lots indicate that the provisions of the Zoning Code may be overly restrictive, relative to substandard lot development. However, it is not the intent to allow multiple variances. The incentive to comply with the Ordinance is that a permit applicant could avoid the time consuming and costly variance process. The city would benefit in a reduction of variance applications and also the number of variances requested per individual substandard lot. The proposal is to allow administrative processin9 of a 5' setback request similar to how admin1strative subdivisions are currently reviewed. In the event that an ob~ection to the 5' setback is raised, the indiv1dual would be required to file a variance application for review by the Planning commission. Staff recommends that notice of the proposed 5' setback be mailed to contiguous property owners only. If there is an objection, the applicant would be required to obtain names of fee owners of property within 100' of the site, from a certified abstract company and file a variance application for consideration. ALTERNATIVES: 1. Approve Shore1and Management Ordinance 93-01 subject to: Conditions as deemed appropriate by the Cit~ council. ReV1ew and redraft of Ordinance by City ~ Attorney, Glenn Kessel for proper form and format. Review and Acceptance by the DNR. a) b) c) * Staff also recommends approval of Resolution 93-08 outlining the position of the City relative to identification and upgrade of non-conforming sewage treatment systems. RECOMMENDATION: ACTION REQUIRED: 2. Table discussion for further study or information. (If this alternative is chosen staff recommends that a special meeting date and time be determined prior to March 4, 1993) 3. Deny Shore1and Management Ordinance 93-01. (The consequence of denial is that the DNR may adopt an ordinance for the city and that no Comprehensive Plan amendments will be considered by the Metropolitan council for the city of Prior Lake). Alternative #1. A motion by the Cit~ council to adopt Shoreland Management Ord1nance 93-01 subject to the conditions outlined. A separate motion to adopt Resolution 93-08 outlining the city policy relative to identification and upgrade of non-conforming sewage treatment systems. [IDrn~~~ RESOLUTION 93-08 RESOLUTION SETTING FORTH PRIOR LAKE POLICY FOR THE IDENTIFICATION AND UPGRADE OF NONCONFORMING SEWAGE TREATMENT SYSTEMS WITHIN SHORELAND ZONING DISTRICTS. MOTION BY SECONDED BY WHEREAS, the City council of Prior Lake, adopted Ordinance 93-01 implementing Shoreland Management regulations for the City of Prior Lake on February 16, 1993; and WHEREAS, a resolution is required to be forwarded to the Commissioner of Natural Resources, outlining the Cit~'s intent to identify and require upgrade of non-conform1ng sewage treatment systems; and WHEREAS, the city of Prior Lake has established the following programs: 1. 2 . The City of Prior Lake has adopted the Scott County Sewage Treatment system Ordinance by reference. All sewage system installers, site evaluators/percolation testers and septic tank pumpers are licensed by Scott County and required to be certified by the Minnesota Pollution Control ACJency. L1censed septic tank pumpers are required to submit Monthly reports of septic tank pumping to Scott County. On-site sewage systems which discharge to the surface are ordered to be upgraded to meet current standards. upgrades are also required at the time of building permit application for homes which are adding bedrooms or other facilities increasing sewage volumes. Upgrades may be required for commercial on-site sewage systems when the t~pe of use changes and a conditional use perm1t is required. All new building sites are inspected before a permit is issued to insure the lot can accommodate a sewage system for the planned building. On-site systems are also inspected during construction. Records are reviewed when requested for mortgage 3. 4. 5. 6. 4629 Dakota St. S.E., Prior Lake, Minnesota 55372 / Ph, (612) 4474230 / Fax (612) 447-4245 AN EQUAL OPPORTI.JNITY EMPLOYER transactions and upgrades for sewage systems are recommended when needed. and; WHEREAS, the city of Prior Lake will add the following programs: 1. Investigations and evaluations of on-site sewage systems will be conducted for lake homes on a staff availability basis. 2. Annual seminars for all contractors in the city of Prior Lake will include information regarding special provisions for on-site sewage systems in Shoreland Districts. NOW THEREFORE BE IT RESOLVED BY THE MAYOR AND CITY COUNCIL OF PRIOR LAKE, that pursuant to section 9.6 A,7, of Prior Lake Shoreland Ordinance 93-01, that non-conforming sewage treatment systems will be identified and upgraded according to the provisions outlined herein. Passed and adopted this 16th day of February, 1993. YES NO Andren Fitzgerald Kedrowski Scott White Andren Fitzgerald Kedrowski Scott White Kay Kuhlmann Acting City Manager {Seal} flrN:c ADDENDUM Northwest Associated Consultants, Inc. URBAN PLANNING'DESIGN'MARKET "ESEAAe~ MEMORANDUl'vr TO: Prior Lake Mayor and City Council Stephen Grit~n 10 February 1993 Prior Lake - Shoreland Ordinance ,Update 199.01 FROM: DATE: RE: FILE NO: The Planning Commission has completed its review and public hearing on the proposed Shoreland Ordinance. The enclosed packet includes a copy of the draft Ordinance which was prepared by our office based upon discussions with staff, ONR personnel, and issues which arose from the workshops held last Fall. Attached to the draft are a series of changes to the draft which were recommended by the Planning Commission. Most of these proposals have been given an initial review by DNR staff, and some are in response to their comments. Wit.h regard to the overall effect of the Ordinance on lots of record, the Planning Commission's recommended language establishes a set of criteria under which substandard lots of record can develop without need for additional zoning approvals such as variances or conditional use permits. particularly narrow lots may be allowed a reduced setback on one side where it meets all of the crit.eria and no other variances are proposed. The latter allowance would be by a "minorn variance process. Section 9.6 .B. 7 of the new Ordinance requires the Council to establish a policy on non-conforming septic systems by resolution. Your Building Official has developed such a policy which may be adopted for the purposes of this Ordinance. pc: Deb Garross 5775 Wayzata Blvd.. Suite 555 · St. Louis Park, MN 55416' (612) 595-963S.Fax, 595-9837 PLANNING COM:MISSION ALTERNATIVE LANGUAGE TO DRAFT Section S.3.B.l.d. (page 7); d. Impervious surface coverage for all commercial and industrial zoning districts and for public recreational uses may be allowed to exceed seventy-five (75) percent of the total lot or exceed existing conditions on the lot which are over seventy-five (75) percent provided the following stipulations are met: Section 9.3.C.2.b) (page 8), b) Each dwelling unit must be separately serred by public utilities, none of which are shared; Section 9.3.D.4.h) (page 12). h) The structure shall be attached to a pennanent foundation so as to be immovable trom its approved location. Section 9.3.D.S.b) (page 12)1 b) Landings for stairways and lifts on residential lots must not exceed thirty-cwo (32) square feet in area. Landings larger than thirty-two (32) square feet may be used for commercial properties, public open space recreational properties, and planned unit developments. The required lakeshore setback for landings shall be ten (10) feet, measured from the ordinary high water mark of the public water. Landings shall not project into any required side yard setback. Section 9.3.2.1.4) (page 14), d) The minimum lot size for all islands without municipal sewer and water is one acre. On Twin ISland, tha minimum lot size requirement is fifteen thousand (15,000) square ~eet or two (2) contiguous <side-by-side) lakeshore lots, whichever is less. Section 9.3.!.1.e) (page 14). e) The min~ lot width at oaw is seventy-five (75) ~eet. Section 9.12 .B. (page 37) a B. Substandard Lot: Oevelopment of a substandard lot of record requires sensitivity and careful attention to issues of drainage, setbacks, floodplain elevation, grading, lot coverage, existing vegetation cover, and relationship to adjacent structures. New construction upon substandard lots should be carefully designed co integrate with the existing neighborhood development. It is the intent ot this section to provide flexibility to develop substandard lots. However, the requirements outlined herein are not intended to be varied, but provide the minimum conditions under which the City will allow a substandard lot to be developed for single family detached dwelling purposes. 1. Sewered Areas. a) A lot of record existing upon the effeccive date of this Ordinance in a residencial district, located adjacent to a General DeVelopment or Recreational Oevelopment Lake, which does not meet the requireme~ts of this Ordinance as to area or width may be utilized for single fam1ly detached dwelling purposes provided that all of the conditions of this sub-section apply. Lots that do not meet all of the following conditions shall not be considered as a separate parcel tor development purposes but may be used for open space, other uses permitted in the zoning district, or combined with an adjac~nt lot. 1) The minimum lot size with public sewer shall be a minimum of fifty (50) feet in width measured at the front yard setback line and shall have a minimum lot area equal to or greater than seven thousand five hundred (7,500) square feet. 2) The lot has been assessed a sewer and water assessment and will not require an on-site septic system for development. 3) The lot was created compliant wich official controls in effect at the time. 4) The development plans conformance with the residential development the Comprehensive Plan. must be in policies for as outlined in 5) The development plan must not exceed thirty (:3 0) percent impervious surface Coverage. 6 i Development must be planr.ed and conducted in such a manner that the control of di.sturbed areas and erosion is demonstratl!d during and after construction. 7) A complete grading and drainage plan be submitted to the City Engineer for review. Such plans should be prepared in accordance ~ith the National Urban Runoff Program (N"'uR?) GUidelines and Sest Management Practices, until such a time as the City adopcs a Scorm Water Management Plan. 8) Any cutting of eXisting vegetation is minimized to the exter.t possible. 9) The lot and proposed structure must meet all other performance stang.ards of the 20ning and building cOdes~ 10) A substandard, R-1 zone~ lot of record, which contains ~~ th.....,{ fifty (SO) feel: of lot width, measured at the required front yard setback line, may utilize one five (5) foot side yard setback provided the following conditions apply: a) The lot is not contiguous to another lot owned in common by the applicant. b) No significant trees of twelve (12) inches or more in caliper will need be removed to accommodate the five (5) foot side yard setback. c) No encroachment into any other required setback will be necessary. d) In no case shall a proposed building encroach upon any recorded easement. e) There are no written objections from neighbors located Within one hundred (100) feet of the subject site. The applicant will be required to provide a list of property owners prepared by a certified abstract company for notification purposes. Property owners will be given a ten (10) day notification p~riod in which to respond to the proposed five (5) foot setback. In the event that no objections are received, che application may be processed administratively bv Staff. In the event that a written objection is filed within the ten (10) day notification period, the applicant: will be required to file a variance applicant and supporting materials according to the appropriate previsions of the Zoning Ordinance. 2. Unsewered Lots. a) If, in a group of two or more contiguous lots under the same ownership, any individual lot does not meet the requirements of Section 9.3.A of this Ordinance, the lot shall not: be considered as a separate parcel of land for the purposes of sale or development. The lot must be combined with one or more contiguous lots so they equal one or more parcels of land meeting the requirements of Section 9.3.A of this Ordinance as much as possible. f~c Northwest Associated Consultants, Inc. URBAN PLANNING.DESIGN.MARKET RESEARCH MEl\fORANDUM TO: Deb Garross FROM: Allan Hunting/Stephen Grittman RE: 12 January 1993 Prior Lake - Shoreland Ordinance . DATE: FILE NO: 199.01 We are submitting to you a corrected copy of the Shoreland Ordinance resulting from our 29 December meeting for your distribution packet. Our submission contains a memo to Horst discussing our ideas on the commercial planned unit developments, one copy of the Ordinance with the latest revisions shaded, and one clean copy of the Ordinance. Also attached is a copy of a consolidated Section 8, which contains the Ordinance definitions and the old and new shoreland definitions. 5775 Wayzata Blvd.. Suite 555. St. Louis Park, MN 55416. (612) 595-9636.Fax. 595-9837 I~c Northwest Associated Consultants, Inc. URBAN PLANNING.DESIGN.MARKET RESEARCH MEMORANDUM TO: Horst Graser FROM: Allan Hunting/Stephen Grittman DATE: 12 January 1993 RE: Prior Lake - Shoreland Ordinance FILE NO: 199.01 Enclosed please find the draft of the Shoreland Ordinance which contains all of the corrections and additions discussed at the 29 December meeting in your office. We have also combined all of the definitions from the existing and proposed Shoreland Ordinances and put them into the Section 8, Definitions. The definitions in Section 8 are now an all inclusive list. At the beginning of the 29 December meeting, the issue of commercial planned unit development was discussed regarding its applicability in the new Ordinance. Stephen Grittman and I have reviewed the definition of commercial POD,as well as the standards contained in the Shoreland Ordinance and suggest the following: 1. The definitions and standards for commercial PODs are intended to control the conversions of old resorts and to control the densities of new resorts. Since the City does not have any existing resorts or proposes to have such development, the commercial POD standards are not applicable. 2. Excluding commercial PODs from the Shoreland Ordinance will not preclude the hotel portion of the Wilds development. The hotel would be allowed under the base zoning POD requirements which would allow such use. The shore land performance standards for commercial PODs will still be required to conform to the open space and other pertinent requirements of the shoreland POD requirements. 5775 Wayzata Blvd.. Suite 555, St. Louis Park, MN 55416. (612) 595-9636.Fax. 595-9837 We therefore suggest that the City eliminate the commercial POD language and definition but still require such PODs to conform to the shoreland performance standards when such development is located in the Shoreland District. 2 SECTION 8. DEFINITIONS 8 . 1 GENERAL: Certain words used in this Ordinance are defined and shall be interpreted as follows: ACCESSORY RESIDENTIAL UNIT - Consists of up to four (4) sleeping rooms in a single family dwelling that are used for residential occupancy by a member(s) of one family. An accessory residential unit is subordinate to the principle structure; is unobtrusive and does not contain a separate, visible exterior entrance. The existence of an accessory residential unit does not alter the size and layout of conunon rooms such as the kitchen, bathroom, living room and dining room which are considered to be the basic functional characteristics of a single family dwelling. (Ord. 91-05) ACCESSORY STRUCTURE OR USE - Any subordinate building or use customarily incidental and subordinate to the principle use and located on the same lot as the principle use. AGRICULTURE - Cultivating the soil, producing crops and raising livestock. ANIMAL CLINIC - An establishment where animals are treated and/or hospitalized by veterinarians. ANIMAL KENNEL - An establishment or dwelling where three (3) or more animals are bred for sale, boarded, trained, or kept. ANTENNA - A device or that portion of any equipment or device located on the exterior or outside of any structure, used for radiating and/or receiving radio waves only. ASSOCIATION - An organization consisting exclusively of all unit owners which possess certain powers and authority over common elements in Planned Unit Developments, condominiums, townhomes, or other property. AUTOMOBILE REPAIR MAJOR - General repair, all body work, painting, frame work, replacement of engines and transmissions on cars and trucks. (Ord. 85-8) AUTOMOBILE REPAIR MINOR - Replacement of any part or repair of any part which does not require the removal of the engine head or pan, transmission or differential. Upholstering service, glass replacement, lubrication, tune ups are permissible services. All automobile repair, minor shall be limited to passenger automobiles and trucks not in excess of a three-quarter ton rating. BASEMENT - A story having more than fifty (50) percent of its clear height below finished grade. BLOCK A tract of land bounded by streets, or a combination of streets, parks, cemeteries, railroad right-of -way, shorelines, waterways or corporate boundary lines of the City. BLUFF - A topographic feature such as a hill, cliff, or embankment having the following characteristics (an area with an average slope of less than eighteen (18) percent over a distance for fifty (50) feet or more shall not be considered part of the bluff): 1. Part or all of the feature is located in a shoreland area; 2. The slope rises at least twenty-five (25) feet above the ordinary high water level of the waterbody; 3. The grade of the slope from the toe of the bluff to a point twenty-five (25) feet or more above the ordinary high water level averages thirty (30) percent or greater; and 4. The slope must drain toward the waterbody. BLUFF IMPACT ZONE - A bluff and land located within twenty (20) feet from the top of a bluff. BOARD - The Board of Adjustment established by this Ordinance. BOARDING HOUSE - A building, not a hotel or motel, where for compensation and for pre-arranged periods, meals and/or lodgings are provided to not less than three (3) nor more than ten (10) persons. BOATHOUSE - A structure used solely for the storage of boats or boating equipment. BUILDING AREA - The space remaining on a zoning lot after minimum yard and open space requirements have been met. BUSINESS AREA - Any business activity which renders service to other commercial or industrial enterprises. CERTIFICATE OF OCCUPANCY - A certificate issued by the City Planner for any structure built or change of use within any structure in the City of Prior Lake before it is occupied. CLEAR CUTTING - The removal of an entire stand of trees. CLINIC - Any establishment where human patients are examined and treated by doctors or dentists but are not hospitalized overnight. ~ Any establishment operated for social, recreational, or educational purposes but open only to members and not to the general public. CLUSTER DEVELOPMENT - Considered to be a type of Planned Unit Development and is subject to the same review criteria. COMMERCIAL PLANNED UNIT DEVELOPMENTS - A conunercial land use district to which is applied the requirements of the Planned Unit Development as defined in the Zoning Ordinance. COMMERCIAL RECREATION - Includes low intensity uses that can function without municipal sewer or water, and usually require large amount of open space. Such uses may be seasonal or temporary in nature. Includes uses such as fairs, agricultural exhibits, tractor pulls, shooting ranges and private airports, but does not include amusement parks, water slides or combat games. COrd. 85-08) COMM:ISSIONER - The Conunissioner of the Department of Natural Resources. CONDITIONAL USE A use which, because of special problems of control, requires reasonable l~itations peculiar to the use for the protection of the public welfare and the integrity of the Comprehensive Plan. CONDITIONAL USE PERMIT - A permit issued by the Council in accordance with procedures specified in this Ordinance as a flexibility device to enable the Council to assign dimensions to a proposed use or conditions surrounding it after consideration of adjacent uses and their functions and the special problems which the proposed use presents. CONDOMINIUM Real estate, portions of which are designated for separate ownership and the remainder of which is designated for common ownership solely by the owners of those portions. CONDOMINIUM UNIT - A portion of a condominium whether or not contained solely or partially within a building, designated for separate ownership, the boundaries of which are described pursuant to MS. 515, A-2-110. COVERAGE - That portion of a lot covered by the principle and accessory use structures. DAY CARE CENTER - A service provided to the public in which six (6) or more children of school or pre- school age are cared for during established business hours, where no overnight facilities are provided. DECK - A horizontal, unenclosed platform with or without attached railings, seats, trellises, or other features, attached or functionally related to a principal use or site and at any point extending more than three feet above ground. DENSITY - The number of dwelling units per acre allowable in each district as established in Table 4.2 as further qualified in 4.1 (M). DRIVE- IN ESTABLISHMENT An establishment which accommodates the patron's automobile from which the occupants may receive a service or in which products purchased from the establishment may be consumed or business conducted in the automobile. DUPLEX. TRIPLEX. AND OUAD - A dwelling structure on a single lot, having two, three, and four units, respectively, being attached by common walls and each unit equipped with separate sleeping, cooking, eating, living, and sanitation facilities. DWELLING - Any structure designed or used as the living quarters for one or more families. DWELLING UNIT - One or more rooms designed or intended for occupancy as a single living unit with sanitary, culinary and sleeping facilities separate from those of other living units and intended for the exclusive use of one (1) single family. The room(s) shall be deemed a dwelling unit if it contains facilities for cooking, sleeping, and eating. If the room(s) are used for residential occupancy and can be separated from other rooms in the same building, or if direct access can be gained to the room(s) from outside of the building or through a common hall intended for use by occupants of another dwelling unit, the room(s) shall be considered to be a separate dwelling unit. ( Ord . 91- 05 ) ESSENTIAL SERVICES Underground or overhead gas, electrical, steam or supply or disposal systems. FAMILY - One (1) or more persons related by blood, marriage, adoption, or foster parent relation occupying a dwelling unit and living as a single housekeeping unit, or a group of not more than four (4) persons, not so related, occupying a dwelling unit and living as a single housekeeping unit. ( Ord . 91- 05 ) FAST FOOD/DRIVE-INS Food is served in disposal containers and the customer may have the option to eat at the facility or take the food out. The customer turnover rate at these facilities is very high. Generally, these facilities do not waitresses but rather the food order is placed by the customer at a central counter. FEEDLOT - A confined area or structure used for feeding, breeding, or holding livestock for eventual sale in which animal waste may accumulate, also including barns, pens or other structures used in a dairy farm operation. For purposes of these regulations, pastures and feedlots accommodating fewer than ten (10) animals shall not be considered animal feedlots. FLOOR AREA - The sum of the gross horizontal areas of the several floors of a building or buildings measured from the exterior faces of exterior walls or from the center line of party walls. FLOOR AREA RATIO - The total floor area on a zoning lot divided by the total site area of the lot or parcel being developed. GOVERNING BODY - The City Council by whatever name know. HARDSHIP - The property in question cannot be put to reasonable use under the conditions allowed by the official controls; the plight of the landowner is due to circumstances unique to his property, not created by the landowner; and the variance, if granted, will not alter the essential character of the locality. Economic considerations alone shall not constitute a hardship if a reasonable use for the property exists under terms of the official controls. HEIGHT OF BUILDING OR STRUCTURE - The vertical distance from the average level of the highest and lowest point of that portion of a lot covered by a building, to the highest point for flat roofs; to the deck line of mansard roofs; and to the mean height between eaves and ridge for gable, hip and gambrel roofs. HOME OCCUPATION - An occupation carried on in a dwelling unit which is clearly incidental and secondary to the use of the building for dwelling purposes and which does not change the character thereof. HOUSEKEEPING UNIT All persons residing within a dwelling unit whose relationship includes a substantial amount of social interaction, including the sharing of housekeeping responsibilities, expenses and the taking of meals together. (Ord. 91-05) INTENSIVE VEGETATION CLEARING - The complete removal of trees or shrubs in a contiguous patch, strip, row, or block. LIGHT MANUFACTURING - The processing and fabrication of certain materials and products where no process involved will produce noise, vibrations, air pollution, fire hazard or noxious emission which will disturb or endanger neighboring properties. LIMITED RETREAT - A private, multi-purpose environment for use by individuals and private groups for the purpose of conf erences , workshops, seminars, meditation or training sessions. For the purpose of these regulations, a limited retreat shall not include restaurants for the general public, nor be eligible for a liquor license. (Ord. 86-09) LOT - A piece, parcel or plot of land occupied or capable of being occupied by one or more structures and intended as a unit for transfer of ownership. LOT. CORNER - A lot situation at the junction of and abutting on two or more intersecting streets. LOT OF RECORD - A mean horizontal distance between the front and rear lot lines. LOT. DEPTH OF - A mean horizontal distance between the front and rear lot lines. LOT. MINIMUM AREA OF - The measurements of a lot computed exclusive of any portions of the right-of-way of any public thoroughfare. LOT WIDTH - Dimension of lot at front setback line and if applicable, at the ordinary high water level. MARINA A commercial establishment adjacent to a navigable lake providing moorings for boats and offering other supplies and services accessory to the principal use. (Ord. 83-6) MANUFACTURED SINGLE FAMILY DWELLING A structure, transportable in one or more sections, which in the traveling mode is eight (8) body feet or more in width or forty (40) body feet or more in length, or when erected on site is three hundred twenty (320) or more square feet and which is built on a permanent chassis and designed to be used as a dwelling with a permanent foundation when connected to the required utilities and includes plumbing, heating, air conditioning and electrical systems contained therein. No manufactured dwelling shall be moved into the City of Prior Lake which does not meet the Manufactured Home Building Code as defined in Minnesota Statutes, Chapter 327.31, Subdivision 3. MODULAR HOME A non-mobile housing unit that is basically fabricated at a central factory and transported to a building site where final installations are made, permanently affixing the module to the site. A modular home shall be congruous to a family dwelling_ MOTOR FUEL STATION - An establishment where gasoline, kerosene, motor oil and lubricants are sold or used in servicing motor vehicles and where usual motor vehicle repairs and services are performed. MOTOR FUEL STATIONS AND CONVENIENCE STORE - A store operated in conjunction with a motor fuel station or truck stop for the purpose of offering for sale goods not essential to the motoring public. (Ord. 85-08) NATURAL VEGETATION - Any tree greater than four (4) inches in diameter and any ground cover. NON-CONFORMING STRUCTURE - A structure designed, converted, or adopted for a use prior to the adoption of provisions prohibiting such use in such locations. NON-CONFORMING USE - Any use or arrangement of land or structures legally existing at the time of enactment of this Ordinance or any of its amendments which does not conform to the provisions of the Ordinance. NURSING HOME OR REST HOME - A licensed establishment having accommodations for the continuous care of two or more invalid, infirm, aged convalescent patients or disabled persons that are not related. ORDINARY HIGH WATER MARK - A mark delineating the highest water level which has been maintained for a sufficient period of time to leave evidence upon the landscape. The ordinary high water mark is commonly that point where the natural vegetation changes from predominantly aquatic to predominantly terrestrial. For watercourses, the ordinary high water level is the elevation of the top of the bank of the channel. OUTDOOR SALES - Intermittent buying and selling of goods, merchandise or materials held under the open sky which are regulated by special use permits by the City Council. PLANNED UNIT DEVELOPMENT - A tract of land which will contain two or more principal structures and which may incorporate a variety of land uses developed under unified ownership or control, the development of which may be unique and of a substantially different character than that of the surrounding area. PLANNING AGENCY - The Planning Conmdssion or Planning Department as created by the governing body. PLATFORM - A flat, floored, roofless area detached from a house, constructed with the finished floor elevation within thirty-six (36)inches of natural grade in all locations. PRINCIPAL USB - The main use to which the premises are devoted and the principal purpose for which the premises exist. PUBLIC NUISANCE - Anything offensive or obnoxious to the health and welfare of the inhabitants of the City' or any act or thing repugnant to, or creating a hazard to, or having a detrimental effect on the property of another person or to the community. PUBLIC WATERS Any waters as defined in Minnesota Statutes, Section 103G.005, Subdivision 15. REAL ESTATE - Any lease held for three years or more or other interest in, over or under land, including fixtures, structures and other improvements which pass with a conveyance of land including parcels with or without upper and lower boundaries. RECREATIONAL VEHICLES - A mobile vehicle including boats used for recreational purposes, capable of being towed or being self-propelled. RENT - A fixed periodical return made by a tenant or occupant of property to the owner for the possession, use or occupancy of a dwelling, land, or personal property of the owner. (Ord. 91-05) RESIDENTIAL PLANNED UNIT DEVELOPMENT - A use where the nature of residency is non-transient and the major or primary focus of the development is not service- oriented. For example, residential apartments, manufactured home parks, time-share condominiums, townhouses, cooperatives, and full fee ownership residences would be considered as residential planned unit developments. To qualify as a residential planned unit development, a development must contain at least five (S) dwelling units or sites. RESTAURANT A sit-down facility offering food on permanent reusable tableware and dishes. A restaurant may offer a high or moderately priced menu and could belong to national chain operations. Their service may include a limited take-out menu. The average turnover rate per customer generally is about one hour. SETBACK - The minimum horizontal distance between a structure or sanitary facility and the ordinary high water mark or between a structure or sanitary facil i ty and a road, well, highway, or property lines. SEWAGE TREATMENT SYSTEM A septic tank and soil absorption system or other individual or cluster type sewage treatment system as described and regulated in Section 9.6 of this Ordinance. SEWER SYSTEM - Pipelines or conduits, pumping stations, and force main, and all other construction, devices, appliances, or appurtenances used for conducting sewage or industrial waste or other wastes to a point of ultimate disposal. SHORELAND - Land located within the following distances from protected waters: (i) One thousand (1,000) feet from the ordinary high water mark of a lake, pond, or flowage; and (ii) three hundred (300) feet from a river or stream, or the landward extent of a floodplain on such rivers or streams, whichever is greater. The practical limits of shorelands may be less than the statutory limits where such limits are designated by natural drainage divides at lesser distances, as shown on the official zoning map of the City. SHORE IMPACT ZONE - Land located between the ordinary high water level of a public water and a line parallel to it at a setback of fifty (50) percent of the structure setback. SHORELAND SUBSTANDARD LOT OF RECORD - A lot of record in the Office of the Scott County Recorder prior to 4 May 1987, which does not meet the requirements of Section 9.3.A of this Ordinance. SIGN - Any name identification, display illustration structure or device which is publicly displayed and which is used to direct attention to a product, person, business, institution or place. SIGNIFICANT HISTORIC SITE - Any archaeological site, standing structure, or other property that meets the criteria for eligibility to the National Register of Historic Places or is listed in the State Register of Historic Sites, or is dete~ined to be an unplatted cemetery that falls under the provisions of Minnesota Statutes, Section 307.08. A historic site meets these criteria if it is presently listed on either register or if it is determined to meet the qualifications for listing after review by the Minnesota State Archaeologist or the Director of the Minnesota Historical Society. All unplatted cemeteries are automatically considered to be significant historic sites. STEEP SLOPE Land where agricultural activity or development is either not recommended or described as poorly suited due to slope steepness and the site's soil characteristics, as mapped and described in available county soil surveys or other technical reports, unless appropriate design and construction techniques and farming practices are used in accordance with the provisions of this Ordinance. Where specific information is not available, steep slopes are lands having average slopes over twenty (20) percent, as measured over horizontal distances of fifty (50) feet or more, that are not bluffs. STRUCTURE - Anything constructed or erected, the use of which requires a fixed location on the ground or any attachment of something having a fixed location on the ground, including, in addition to buildings, billboards, carports, porches, and other building features but not including sidewalks, drives, fences and patios. SUBDIVISION - The division of a single lot, tract or parcel of land, or a part thereof, into two or more lots, tracts or parcels of land, however, that the division of land in parcels of more than five (5) acres having a width of not less than three hundred (300) feet shall not be included. SUBSTANDARD USE - Means any use of shorelands existing prior to the date of enactment of this Ordinance which is permitted within the applicable zoning district but does not meet the minimum lot area and length or water frontage, structure setbacks, or other dimensional standards of the Ordinance. SUPPLY YARD - A commercial establishment storing or offering for sale building supplies, steel suppl ies , coal, heavy equipment, feed and grain, and similar goods. Supply yards do not include the wrecking, salvaging, dismantling or storage of automobiles and similar vehicles. SURFACE WATER-ORIENTED COMMERCIAL USE - The use of land for commercial purposes, where access to and use of a surface water feature is an integral part of the normal conductance of business. Marinas, resorts, and restaurants with transient docking facilities are examples of such use. TOE OF THE BLUFF - The lower point of a fifty (50) foot segment with an average slope exceeding eighteen (18) percent. TOP OF THE BLUFF - The higher point of a fifty (50) foot segment with an average slope exceeding eighteen (18) percent. TOWER - Any man-made structure to which an antenna is attached, or used to support an antenna. TOWHHOUSE - Single family attached units in structures housing three (3) or more continuous dwelling units, sharing a common wall, each having separate and individual front and rear entrances; the structure is of a row type house as distinguished from multiple dwelling apartment buildings. TRAVEL TRAILERS - A mobile vehicle with wheels, designed for overnight living or camping purposes, capable of being towed by a passenger automobile. USABLE OPEN SPACE - A ground area on a lot which is graded, developed, landscaped or equipped or intended and maintained for recreation or leisure, available to and usable by persons occupying a dwelling unit and their guests. VARIANCE - A waiving by Board action of the literal provisions of the Zoning Ordinance in instances where their strict enforcement would cause undue hardship because of circumstances unique to the individual property under consideration. WATER-ORIENTED ACCESSORY STRUCTURE - A building of one hundred twenty (120) square feet or less used to store boating accessories and equipment located on lakeshore lots that contain steep slopes equal to or greater than twenty (20) percent which because of the relationship of its use to a surface water feature reasonably needs to be located closer to the lakeshore ordinary high water (OHW) mark than the normal structural setback requirement. COrd. 91-07) YARD - A required open space on a lot which is unoccupied or unobstructed by structures from ground level upward. YARD. FRONT - A yard extending across the full width of the lot and lying between the front property line of the lot and the nearest parallel line drawn across the front of the principal building. For lakeshore property, the front yard shall be considered that part of the lot that is between the road and the nearest parallel line drawn across the front of the principle building. YARD. REAR - A yard extending across the full width of the lot and lying between the rear line of the lot and nearest parallel line drawn across the rear of the principal building. YARD. SIDE - A yard between the side line of the lot and the nearest line of the principal building and extending from the front line of the principle building to the rear line of the principle building. (Ord. 91-03) WETLAND - A surface water frontage classified as a wetland in the United States Fish and Wildlife Service Circular NO. 39 (1971 Edition). SECTION 9. SHORELAND DISTRICT 9.1 A. B. 9.2 GENERAL PROVISIONS Statutory Authorization: This Shoreland Ordinance is adopted pursuant to the authorization and policies contained in Minnesota Statutes, Chapter 103, Minnesota Regulations, Parts 6120.2500 6120.3900, and the planning and zoning enabling legislation in Minnesota Statutes, Chapter 462. Policy: The uncontrolled use of shorelands of the City of Prior Lake affects the public health, safety and general welfare not only by contributing to pollution of public waters, but also by impairing the local tax base. Therefore, it is in the best interests of the public health, safety and welfare to provide for the wise development of shorelands of public waters. The Legislature of Minnesota has delegated responsibility to the municipalities of the State to regulate the subdivision, use and development of the shorelands of public waters and thus preserve and enhance the quality of surface waters, preserve the economic and natural environmental values of shorelands, and provide for the wise utilization of waters and related land resources. This responsibility is hereby recognized by the City of Prior Lake. DESIGNATION OF TYPES OF LAND USE A. Shoreland Management Classification: In order to guide the wise development and utilization of shorelands of protected waters for the preservation of water quality, natural characteristics, economic values and the general health, safety and welfare, certain protected waters in the City have been given a shoreland management classification. These protected waters of the City have been classified .1Ii....I_l.iiiiltiii.ii!~=>>..J Natural Environment Lakes 1. Howard Lake Township 114, 115N, Range 22W, Sections 5, 32 Pike Lake Township 115N, Range 22W, Section 23 2. 3. Unnamed ~1.ql~9:r:~.i'\1::. Townshipd..T'fS.N.:.'."....Raiige~......22W , Section 33, 34SW 4. Keup's Lake (Mystic) Township 115N, Range 22W, Section 28 5. Hass Lake Township 115N, Range 22W, Section 27NW ~~~~~p:l"~~II!!I"" , Section 27 6. Recreational Development Lakes 1. Markley Lake Township 114N, Range 21; 22W Sections 6, 1 2. ~~~~~p[!"[fll.'I:;22W Section 1, 2 ONR to NO. 70-73P 70-76P 70-85 70-79W 70-78 70-77 ONR IO NO. 70-21W 70-53 QIDiM 957.3 820.5 Not Estab. 960.0 907.3 Not Estab. OHWM Not Estab. Not Estab. General Oevelooment Lakes ONR ID NO. mmM 1. Spring Lake 70-54P 912.8 Township 114N, Range 22W, Sections 3-5, 8-10 2. Lower Prior Lake 70-26P 904.0 Township 115N, Range 21; 22 Sections 30; 25, 26, 35, 36 3. Upper Prior Lake 70-72P 904.0 Township 114; 115N, Range 22W Sections 2-4, 34, 35 2 Tributary Streams Legal Description 1. Unnamed (to Lower Prior Lake) SW 1/4 Section 35, Twp. 115N, Range 22W 2. Unnamed (to Upper Prior Lake) SE 1/4, Section 4, SW 1/4, Section 3, Twp, 114N, Range 22W 3. Unnamed Tributary NE 1/4, Section 27; Section 23; SE 1/4, Section 14, Twp. 11SN Range 22W B. Shoreland District: The shorelands of the City of Prior Lake are hereby designated as a Shoreland Overlay District. The purpose of the Shoreland Overlay District is to provide for the wise utilization of shoreland areas in order to preserve the quality and natural character of these protected waters of the City. 1. Permitted Uses. All permitted uses allowed and regulated by the applicable zoning district as indicated on the official Zoning Map of the City. 2. Conditional Uses. All conditional uses and applicable attached conditions allowed and regulated by the applicable zoning district underlying this Shoreland District as indicated on the official Zoning Map of the City and as required by Section 4 of this Ordinance. 3. Substandard Uses. Any uses of shore lands in existence prior to the date of enactment of this Ordinance which are permitted within the applicable zoning district, but do not meet the minimum lot area, setbacks or other dimensional requirements of this Ordinance are substandard uses. However, any structural alteration or addition to a use that will increase the substandard dimensions substantially shall not be allowed. a) Deck additions may be allowed withou~ a variance to a structure not meeting the required setback from the ordinary high water level if all of the following criteria and standards are met: 1. The structure existed on the date the structure setbacks were established; 3 9.3 A. 2. A thorough evaluation of the property and structure reveals no reasonable location for a deck meeting or exceeding the existing ordinary high water level setback of the structure; 3 . The deck encroachment toward the ordinary high water level does not exceed fifteen (15) percent of the existing setback of the structure from the ordinary high water level or does not encroach closer than thirty (30) feet, whichever is more restrictive; and 4. The deck is constructed primarily of wood, and is not roofed or screened. 4. Prohibited Uses. Any uses which are not permitted or conditional uses as regulated by the applicable zoning district underlying this Shoreland District as indicated on the official Zoning Map of the City. ZONING PROVISIONS The following standards shall apply to all shorelands of the protected waters listed in Section 2 of this Ordinance within the City. Where the requirements of the underlying zoning district, as shown on the official Zoning Map, are more restrictive than those set forth herein, then the more restrictive standards shall apply: 1. Unsewered Lakes Natural Environment: Riparian Lots Area Width Non-Riparian Lots Area Width Single ~~'i~lg.lI~~]!fll~.UI~lDlf~I[jl_~MI.! Tributary: * Riparian Lot Widths Single Duplex Triplex Quad 100 150 200 250 * There is no ml.nl.Inum lot size requirements for rivers and streams. 4 Structure Setback from OHW (feet) Top of Bluff (feet) Unplatted Cemetery (ft) Structure Height Limitation (ft) Sewage System Setback From OHW (feet) 2. Sewered Lakes Natural Development Lakes Tributary Rivers 150 100 30 30 50 50 a:1 RI, 150 75 Natural Environment: Single Duplex Triplex Quad Riparian Lots Area Width 40,000 70,000 100,000 130,000 Non-Riparian Lots Area Width 125 225 325 425 20,000 35,000 52,000 65,000 :lltU' .~:2.:0' 315 410 Riparian Lots Front . Area Width 1111.I. Non-Riparian Lots Recreational Development: Area Width Single Duplex Triplex Quad ,:~:ll::~WA'ft:~~$':::::f.f..':~:;:f..:::::::::~~lI::~;f.:~>;O::~'~:;:f.:::::" . .o"'.v.~u.........,...,~....~.~.......<......~ : :;~g~*bl6::6~~iH#:l#iI:1:i5:~m@:iHli~..::.:..; 50,000 195 ~I 65,000 255 Ii , 38,000 49,000 190 245 General Development: Single Duplex Triplex Quad 15,000 26,000 38,000 49,000 9.0 l'j:.S: 195 255 P:f5 ~:;.... , IL. ~* 10,000 17,500 25,000 32,500 II l~~g: 190 245 5 B. Tributary: * Riparian Lot Widths 11::_- %1 liS. Ii. ............... Single Duplex Triplex Quad JUl If~. 150 190 * There is no ml.nl.mum lot size requirements for rivers and streams. Nat. Dev. Lakes Rec. Dev. Lakes Gen. Dev. Lakes Tri- tary Rivers Structure Setback from OHW (feet) 150 75 75 75 TOp of Bluff (feet) 30 30 30 30 Unplatted Cemetery (ft) SO SO SO SO Structure Height Limitation ( f t )Ij;::l:::::il:::::i:iil:ii:;:::i:liiii:::i:ii::::i:::::g:iJ:~:::i:i::I:::::::~::I:li:I:::l~~:i:i:~:;1;2:~jIDl1~1:l~l~1:~l\t,i~~::~:::Ie:i (t/ J \ ~ Bluff Impact Zones. Structures and accessory \:''./ 'd^- facilities, except stairways and landings, must not V~ be placed within bluff impact zones.\~.. /..10 -f \ ~v o~ .( Impervious Surface Coverage: ~U ~ ~} ~ : t} Impervious surface coverages for lots in a 1 zoning districts shall not exceed twenty-five ) percent of the lot area, except as provided below: 3. 1. b. \) ___ \ /",,1 An existing site which is being altered" ~ remodeled, or expanded without expanding the existing impervious surface may be allowed, provided that where appropriate and where 6 c. necessary, treatment compliance Management Engineer. - existing site being altered, remodeled, or expanded which expands the existing impervious surface coverage may be allowed where necessary provided the site conforms to the ~e~n:Ftsge=;.,:;:nbY. CIfY-...Eh~fjjieEir...:.........provI"d.ed the impervious surface coverage does not exceed seventy-five (75) percent of the total lot and provided the following stipulations are met: structures and practices for the of storm water runoff are in with the prior Lake Storm Water plan and approved by the City 1) All structures, additions or expansions shall meet setback and other requirements of this Ordinance. 2) The lot shall be served by municipal sewer and water. d. Impervious surface coverage may be allowed to exceed seventy-five (75) percent of the total lot or exceed existing conditions on the lot which are over seventy-five (75) percent provided the following stipulations are met: 1) A conditional use permit is submitted and approved as provided for in Section 7 of this Ordinance. 2) Improvements that will result in an increased rate of runoff directly entering a public water shall have all structures and practices in compliance with the City Storm Water Management Plan in place for the collection and treatment 7 of storm water runoff or will be constructed in conjunction with a conditional use permit application. 3) All the conditions in B.l.b 1)-3) above are satisfactorily met. e. Measures for the treatment of storm water runoff and/or prevention of storm water from directly entering a public water include such appurtenances as sediment basins (debris basins, desilting basins, or silt traps), installation of debris guards and microsilt basins on storm sewer inlets, oil skimming devices, etc. C. Additional Special provisions: 1. Residential subdivisions with dwelling unit densities exceeding those in Sections 9.3.A.l and 9.3.A.2 can only be allowed if designed and approved as residential planned unit developments under Section 9.11 of this Ordinance. Only land above the ordinary high water level of public waters can be used to meet lot area standards, and lot width standards must be met at both the ordinary high water level and at the building line. 2. Subdivisions of duplexes, triplexes, and quads on Natural Environment Lakes must also meet the following standards: a) Each building must be set back at least two hundred (200) feet from the ordinary high water level; b) .. Each building must have common sewage ( treatment and water systems in one location .)" Vnd serve air dwelling units in the bUilding;~~ ~rtJJv, ~ ~ f c) Watercraft docking facilities for each lot must be centralized in one location and serve all dwelling units in the building; and d) No more than twenty-five (25) percent of a lake's shoreline can be in duplex, triplex, or quad developments. 8 3. Lots intended as controlled accessed to public waters or as recreation areas for use by owners of non-riparian lots within subdivisions are permissible and must meet or exceed the following standards: a) They must meet the width and size requirements for residential lots, and be suitable for the intended uses of controlled access lots. b) If docking, mooring, or over-water storage of more than six (6) watercraft is to be allowed at a controlled access lot, then the width of the lot (keeping the same lot depth) must be increased by the percent of the requirements for riparian residential lots for each watercraft beyond six, consistent with the following table: Controlled Access Lot Frontage Requirements Ratio of Lake Size To Shore Length (Acres/Mile) Required Increase In Frontage (Percent) Less than 100 100 - 200 201 - 300 301 - 400 Greater than 400 25 20 15 10 5 c) They must be jointly owned by all purchasers of lots in the subdivision or ~y all purchasers of non-riparian lots 1n the subdivision who are provided riparian access rights on the access loti and d) Covenants or other equally effective legal instruments must be developed that specify which lot owners have authority to use the access lot and what activities are allowed. The activities may include watercraft launching, loading, storage, beaching, mooring, or docking. They must also include other outdoor recreational activities that do not significantly conflict with general ptiQlic use of the public water or the enjoyment of normal property rights by adj acent property owners. Examples of the non-significant conflict activities include swimming, sunbathing, or picnicking. The covenants must limit the total number of vehicles allowed to 9 be parked and the total number of watercraft allowed to be continuously moored, docked, or stored over water, and must require centralization of all conunon facilities and activities in the most suitable locations on the lot to minimize topographic and vegetation al terations . They must also require all parking areas, storage buildings, and other facilities to be screened by vegetation or topography as much as practical from view from the public water, assuming Summer, leaf on conditions. D. Placement, Design, and Height of Structures: a shore impact zone or a bluff impact zone. 3. High Water Elevations. Structures must be placed in accordance with any floodplain regulations applicable to the site. Where these controls do not exist, the elevation to which the lowest floor, including basement, is placed must be determined as follows: a) For lakes, by placing the lowest floor at a level at least three (3) feet above the highest known water level, or three (3) feet above the ordinary high water level, whichever is higher; b) For rivers and streams, by placing the lowest floor at least three (3) feet above the flood of record, if data are available. If data are not available, by placing the lowest floor at least three (3) feet above the ordinary high water level, or by conducting a technical evaluation to determine effects of proposed construction upon flood stages and flood flows 10 and to establish a flood protection elevation. Under all three approaches, technical evaluations must be done by a qualified engineer or hydrologist consistent with Parts 6120.5000 to 6120.6200 governing the management of floodplain areas. If more than one approach is used, the highest flood protection elevation determined must be used for placing structures and other facilities, and c) Water-oriented accessory structures may have the lowest floor placed lower than the elevation determined in this item if the structure is constructed of flood-resistant materials to the elevation, electrical and mechanical equipment is placed above the elevation and, if long duration flooding is anticipated, the structure is built to withstand ice action and wind-driven waves and debris. 4. One (1) water-oriented accessory structure may be allowed per lot on General Development (GO) lakes that have municipal sewer and water, provided a building permit is obtained from the City of Prior Lake and the following criteria are met: a) The lot contains a slope equal to or greater than twenty (20) percent measured from the front of the principal structure to the ordinary high water marki and b) The structure must be one (1) story in height and cannot occupy an area greater than one hundred twenty (120) square feet and the maximum height of the structure must not exceed ten (10) feet including the roofi and c) The structure shall be located in the most visually inconspicuous portion of the lot, as viewed from the surface of the lake, assuming Summer, leaf-on conditions. The minimum setback requirement must be at least ten (10) feet from the ordinary high water mark and meet the other applicable side yard setbacks. The setbacks shall be verified by a certificate of survey prepared by a registered surveyor; and 11 d) The structure must not be designed or used for human habitation and must not contain water supply or sewage treatment facilities. However, the structure may contain electrical and mechanical systems; and e) The structure must be constructed of treated wood and/or block that is compatible with the principal structure and designed to reduce visibility as viewed from public waters and adjacent shorelands by vegetation, topography, increased setbacks or color, assuming Summer, leaf-on conditions; and f) If the proposed structure will be located below the regulatory floodplain elevation, the structure must be built compliant with applicable flood-proofing requirements of the Building Code and Prior Lake Floodplain Ordinance; and g) Trees that are four (4) inches in caliper or larger should not be removed for the erection of a water-oriented accessory structure. If removal is necessary, replacement with like trees must be made with the approval of the Building Official. Erosion control measures, as required by the Building Official, must be implemented and all disturbed vegetation replaced with sod or suitable landscaping materials. S. Stairways, Lifts, and Landings. Stairways and lifts are the preferred alternative to major topographic alterations for achieving access up and down bluffs and steep slopes to shore areas. Stairways and lifts must meet the following design requirements: a) Stairways and lifts must not exceed four (4) feet in width on residential lots. Wider stairways may be used for commercial properties, public open space recreational properties, and planned unit developments; b) Landings for stairways and lifts on residential lots must not exceed thirty- two (32) square feet in area. Landings larger than thirty-two (32) square feet may be used for commercial properties, public open space recreational properties, and planned unit developments; 12 c) Canopies or roofs are not allowed on stairways, lifts, or landings; d) Stairways, lifts, and landings may be either constructed above the ground on posts or pilings, or placed into the ground, provided they are designed and built in a manner than ensures control of soil erosion: e) Stairways, lifts and landings must be located in the most visually inconspicuous portions of lots, as viewed from the surface of the public water assuming Summer, leaf on conditions, whenever practical; and f) Facilities such as ramps, lifts, or mobility paths for physically handicapped persons are also allowed for achieving access to shore areas, provided that the dimensional 'and performance standards of sub-items (1) to (5) are complied with in addition to the requirements of Minnesota Regulations, Chapter 1340. 6. Significant Historic Sites. No structure may be placed on a significant historic site in a manner that affects the values of the site unless adequate information about the site has been removed and documented in a public repository. 7. Steep Slopes. The City Engineer must evaluate possible soil erosion impacts and development visibility from public waters before issuing a permit for construction of sewage treatment systems, roads, driveways, structures, or other improvements on steep slopes. When determined necessary, conditions must be attached to issued permits to prevent erosion and to preserve existing vegetation screening of structures, vehicles, and other facilities as viewed from the surface of public waters, assuming Summer, leaf on vegetation. 8. Height of Structures. All structures in residential districts, except churches and non- residential ~gricultural structures, must not exceed IIJll.il~III~~111 feet in height. E. Island Development: 1. . B.."""'.............ft:-.......w...........v.....1iiiiiiJf......;.I!...................1l..'..................-""^.<...x..o)..........."..............av.... D 1 t 1 d........ ...ti;i: ..:x~~:tii:'...,................. .'. .:'j;t. ................ ........'i!ii"w:.......,............,.mmw eve 0 men on 18 an 8 :.. .:...:::~.d14j:l.....:.:..:..::.:'~:..::::.: ":::.:::iiif~:'... ':-:.?1i':' : '. iiili ~hall be subject t.o'~ttiEt"tori'owl'n"con'l~f;~<<<r 13 d) e) a) Permitted uses on islands are limited to seasonal cabins, public parks, and open space. Year round residences are not permitted. Recreational facilities, such as a pavilion or picnic facilities for a homeowners association, may also be permitted by conditional use permit as set forth in Section 7.5 of this Ordinance. b) Any structure built on an island must contain an enclosed septic system or incinerator toilet facilities. c) An application for building permit or variance must include a signed lease arrangement that indicates that the owner has two, on land, parking spaces for vehicles. Parking vehicles on public streets, while occupying a seasonal structure on jIIIil$.i~_, is not permitted. In addition, thei...........owiie.i............:rs required to provide proof of residency, at some location other than the island, at the time of building permit application. -~ two (2) contiguous lots, whichever is less. Minimum lot width at OHW is one hundred twenty-five (125) feet. ~nimum lot width at front setback line is one hundred fifty (150) feet. f) Setbacks for structures on A!~lill shall comply with the following: 1) 2) 3) Structure setback from OHW Side Yard .: ~>:::..:<:,..B::::';g1lit&1~~;i!l System ... ...... .::Q.~M::Aii: ~ *~::>;:(::'" .:i:."Y;~':~-;.::::*<:.;;~:(~-;:::::; 100 feet 10 feet 75 feet g) Clear cutting of natural vegetation is prohibited. Natural vegetation shall be restored insofar as feasible immediately after any construction project is completed to retard surface runoff and soil erosion. h) Any removal of vegetation in conjunction with any construction project shall require a restoration plan to be submitted and reviewed 14 by the City to ensure that natural vegetation is retained insofar as possible to screen seasonal structures and other buildings on site. i) The lowest #~Qqi elevation of the structure includin basement and crawl s ace must Ma~1 9.4 SHORELAND ALTERATIONS: Alterations of vegetation and topography will be regulated to prevent erosion into public waters, fix nutrients, preserve shore1and aesthetics, preserve historic values, prevent bank slumping, and protect fish and wildlife habitat. A. Vegetation Alterations: 1. Vegetation alteration necessary for the construction of structures and sewage treatment systems and the construction of roads and parking areas regulated by this Ordinance are exempt from the vegetation alteration standards that follow. 2. Removal or alteration of vegetation, except for agricul tural and forest management uses as regulated by this Ordinance is allowed subject to the following standards: a) Intensive vegetation clearing within the shore and bluff impact zones and on steep slopes is not allowed. Intensive vegetation clearing for forest land conversion to another use outside of these areas is allowable as a conditional use if an erosion control and sedimentation plan is developed and approved by the soil and water conservation district in which the property is located. b) In shore and bluff impact zones and on steep slopes, limited clearing of trees and shrubs and cutting, pruning, and trimming of trees is allowed to provide a view to the water from the principal dwelling site and to accommodate the placement of stairways and landings, picnic areas, access paths, beach and watercraft access areas, and permitted water- oriented accessory structures of facilities, provided that: 15 1. The screening of structures, vehicles, or other facilities as viewed from the water, assuming Summer, leaf on conditions, is not substantially reduced; 2. Along rivers, existing shading of water surfaces is preserved; and 3. The above provisions are not applicable to the removal of trees, limbs, or branches that are dead, diseased, or pose safety hazards. B. Topographic Alterations/Grading and Filling: 1. Grading and filling and excavations necessary for the construction of structures, sewage treatment systems, and driveways under validly issued construction permits for these facilities do ont require the issuance of a separate grading and filling permit. However, the grading and filling standards in this section must be incorporated into the issuance of permits for construction of structures, sewage treatment systems, and driveways. 2. Public roads and parking areas are regulated by Section 6.5 of this Ordinance. 3. Notwithstanding items 1 and 2 above, a grading and filling permit will be required for: a) The movement of more than ten (10) cubic yards of materia on steep slopes or within shore or bluff impact zones; and b) The movement of more than fifty (50) cubic yards of material outside of steep slopes and shore and bluff impact zones. 4. The following considerations and conditions must be adhered to during the issuance of construction permits, grading and filling permits, conditional use permits, variances and subdivision approvals: a) Grading or filling !.~....>__wc.~.J<.,....~~ .?,,<...>.::~..J activity would affect the following functional qualities of the wetland*: 16 1. Sediment and pollutant trapping and retention; 2. Storage of surface runoff to prevent or reduce flood damage; 3. Fish and wildlife habitat; 4. Recreational use; 5. Shoreline or bank stabilization; and 6. Noteworthiness, including special qualities such as historic significance, critical habitat for endangered plants and animals, or others. * This evaluation must also include a determination of whether the wetland alteration being proposed requires permits, reviews, or approvals by other local, state, or federal agencies such as a watershed district, the Minnesota Department of Natural Resources, or the United States Army Corps of Engineers. The applicant will be so advised. b) Alterations must be designed and conducted in a manner that ensures only the smallest amount of bare ground is exposed for the shortest time possible; c) Mulches or similar materials must be used, where necessary, for temporary bare soil coverage, and a permanent vegetation cover must be established as soon as possible. d) Methods to minimize soil erosion and to trap sediments before they reach any surface water feature must be used; e) Altered areas must be stabilized to acceptable erosion control standards consistent with the field office technical guides of the local soil and water conservation districts and the United States Soil Conservation Service; f) Fill or excavated material must not be placed in a manner that creates an unstable slope; g) Plans to place fill or excavated material on steep slopes must be reviewed by qualified professionals for continued slope stability 17 and must not create finished slopes of thirty (30) percent or greater; h) Fill or excavated material must not be placed in bluff impact zones; i) Any alterations below the ordinary high water level of public waters must first be authorized by the Commissioner under Minnesota Statutes, Section *!!Iw!~!; j) Alterations of topography must only be allowed if they are accessory to permitted or conditional uses and do not adversely affect adjacent or nearby properties; and k) Placement of natural rock riprap, including associated grading of the shoreline and placement of a filter blanket, is permitted if the finished slope does not exceed three (3) feet horizontal to one foot vertical, the landward extent of the riprap is within ten (10) feet of the ordinary high water level, and the height of the riprap above the ordinary high water level does not exceed three (3) feet. C. Placement and Design of Roads, Driveways and Parking Areas: 1. Public and private roads and parking areas must be designed to take advantage of natural vegetation and topography to achieve maximum screening from view from public waters. Documentation must be provided by a qualified individual that all roads and parking areas are designed and constructed to minimize and control erosion to public waters consistent with the field office technical guides of the local soil and water conservation district, or other applicable technical materials. 2. Roads, driveways, and parking areas must meet 1H.QI&tlll setbacks and must not be placed within bYti'lt"->anc!' shore impact zones, when other reasonable and feasible placement alternatives exist. If no alternatives exist, they may be placed within these areas, and must be designed to minimize adverse impacts. 3. Public and private watercraft access ramps, approach roads, and access - related parking areas may be placed within shore impact zones provided 18 the vegetative screening and erosion control conditions of this sub-part are met. For private facilities, the grading and filling provisions of Section 9.4.B of this Ordinance must be met. D. Storm Water Management: 1. When possible, existing natural drainageways, wetlands, and vegetated soil surfaces must be used to convey, store, filter, and retain storm water runoff before discharge to public waters. 2 . Development must be planned and conducted in a manner that will minimize the extent of disturbed areas, runoff velocities, erosion potential, and reduce and delay runoff volumes. Disturbed areas ii~ 3. When development density, topographic features, and soil and vegetation conditions are not sufficient to adequately handle storm water runoff using natural features and vegetation, various types of constructed facilities such as diversions, settling basins, skinuning devices, dikes, waterways ,and ponds may be used. Preference must be given to designs using surface drainage, vegetation, and infiltration rather than buried pipes and man-made materials and facilities. 4. When constructed facilities are used for storm water management, documentation must be provided by a qualified individual that they are designed and installed consistent with the field office technical guide of the local soil and water conservation districts. 5. New constructed storm water outfalls to public waters must provide for filtering or settling of suspended solids and skimming of surface debris before discharge. 9.5 SP~CIAL PROVISIONS FOR COMMERCIAL, INDUSTRIAL, PUBLIC/ SEMI-PUBLIC, AGRICULTURAL, AND FORESTRY: A. Standards for Conunercial, Industrial, Public, and Semi- Public Uses: 19 1. Surface water-oriented commercial uses and industrial, public, or semi-public uses with similar needs to have access to and use of public waters may be located on parcels or lots with frontage on public waters. Those uses with water- oriented needs must meet the following standards: a) In addition to meeting impervious coverage limits, setbacks, and other zoning standards in this Ordinance, the uses must be designed to incorporate topographic and vegetative screening of parking areas and structures; b) Uses that require short-term watercraft mooring for patrons must centralize these facilities and design them to avoid obstructions of navigation and to be the minimize size necessary to meet the need; and c) Uses that depend on patrons watercraft may use signs and convey needed information to subject to the following general arriving by lighting to the public, standards: 1. No advertising signs or supporting facilities for signs may be placed in or upon public waters. Signs conveying information or safety messages may be placed in or on public waters by a public authority or under a permit issued by the County Sheriff; 2. Signs may be placed, when necessary, within the shore impact zone if they are designed and sized to be the minimum necessary to convey needed information. They must only convey the location and name of the establishment and the general types of goods or services available. The signs must not contain other detailed information such as product brands and prices, must not be located higher than ten (10) feet above the ground, and must not exceed thirty-two (32) square feet in size. If illuminated by artificial lights, the lights must be shielded or directed to prevent illumination out across public waters; and 3. Other outside lighting may be located wi thin the shore impact zone or over public waters if it is used primarily to 20 "SMOl" illuminate potential safety hazards and is shielded or otherwise directed to prevent direct illumination out across public waters. This does not preclude use of navigational lights. 2. B. Agriculture Use Standards: 2. a) 1. General cultivation farming, grazing, nurseries, horticulture, truck farming, sod farming, and wild crop harvesting are permitted uses if stee~ slopes and shore and bluff impact zones are mainta1ned in permanent vegetation or operated under an approved conservation plan (Resource Management Systems) consistent with the field office technical guides of the local soil and water conservation districts or the United States Soil Conservation Service, as provided by a qualified individual or agency. The shore impact zone for parcels with permitted agricultural land uses is equal to a line parallel to and fifty (50) feet from the ordinary high water level. Animal feedlots must meet the following standards: New feedlots must not be located in the shoreland of watercourses or in bluff impact zones and must meet a minimum setback of three hundred (300) feet from the ordinary high water level of all public waters basins; and Modifications or expansions to existing feedlots that are located within three hundred (300) feet of the ordinary high water level or within a flood impact zone are allowed if they do not further encroach into the existing ordinary high water level setback or encroach on bluff impact zones. c. Forest Management Standards: The harvesting of timber and associated reforestation must be conducted consistent with the provisions of the Minnesota Non-Point Source Pollution Assessment Forestry and the provisions of Water Quality in Forest Management "Best Management Practices in Minnesota." b) 21 9.6 A. WATER SUPPLY AND SEWAGE TREATMENT: B. Water Supply: Any public or private supply of water for domestic purposes must meet or exceed standards for water quality of the Minnesota Department of Health and the Minnesota Pollution Control Agency. Sewage Treatment: Any premises used for human occupancy must be provided with an adequate method of sewage treatment, as follows: 1. Publicly-owned sewer systems must be used where available. 2. All private sewage treatment systems must meet or exceed the Minnesota Pollution Control Agency's standards for individual sewage treatment systems contained in the document titled, nIndividual Sewage Treatment Systems Standards, Chapter 70eOn, a copy of which is hereby adopted by reference and declared to be a part of this Ordinance. 3. On-site sewage treatment systems must be set back from the ordinary high water level in accordance with the setbacks contained in Section 9.3.A.l of this Ordinance. 4. All proposed sites for individual sewage treatment systems shall be evaluated in accordance with the criteria in sub-items a)-d). If the determination of a site's suitability cannot be made with publicly available, existing information, it shall then be the responsibility of the applicant to provide sufficient soil borings and percolation tests from on-site field investigations. Evaluation Criteria: a) Depth to the highest known or calculated ground water table or bedrock; b) Soil conditions, properties, and permeability; c) Slope; d) The existence of lowlands, local surface depressions, and rock outcrops. 5. Non-conforming sewage treatment systems shall be regulated and upgraded in accordance with Sections 9.6.B.6 and 7 of this Ordinance. 22 6. .....'.ir.]~I..'.". :qu'f~!~:H~! oir~:i:e~di:l:cteemmus~o~e ~~~;~~~d, t~~ a minimum, at any time a building or zoning permit or variance of any type is required for any improvement on, or use of, the property. For the purposes of this provision, a sewage treatment system shall not be considered non-conforming if the only deficiency is the sewage treatment system's improper setback from the ordinary high water level. 7. The City of Prior Lake has by formal resolution notified the Commissioner of its program to identify non-conforming sewage treatment systems. The City of Prior Lake will require upgrading or replacement of any non-conforming system identified by this program y$.~~~8iMQtffiti.I0~lli, as described in Section 9. 6 ~":a":"'6""",w"Q'I"',w"'fhIs"',w"'(5rdliiance. Sewage systems installed according to all applicable local shoreland management standards adopted under Minnesota Statutes, Section 105.485, in effect at the time of installation may be considered as conforming unless they are determined to be failing, except that systems using cesspools, leaching pits, seepage pits, or other deep disposal methods, or systems with less soil treatment area separation above ground water than required by the Minnesota Pollution Control Agency's Chapter 7080 for design of on-site sewage treatment systems, shall be considered non-conforming. 9.7 CONDITIONAL USES: Conditional uses allowable within shoreland areas shall be subject to the review and approval procedures, and criteria and conditions for review of conditional uses established in Section 7.5 of this Ordinance. The following additional evaluation criteria and conditions apply within shoreland areas: A. Evaluation Criteria: A thorough evaluation of the waterbody and the topographic, vegetation, and soils conditions on the site must be made to ensure: 1. The prevention of soil erosion or other possible pollution of public waters, both during and after construction; 2. The visibility of structures and other facilities as viewed from public waters is limited; 3. The site is adequate for water supply and on-site sewage treatment; and 23 9.8 4. The types, uses, and numbers of watercraft that the project will generate are compatible in relation to the suitability of public waters to safety accommodate these watercraft. B. Conditions Attached to Conditional Use Permits: The City Council, upon consideration of the criteria listed above and the purposes of this Ordinance, shall attach such conditions to the issuance of the conditional use permits as it deems necessary to fulfill the purposes of this Ordinance. Such conditions may include, but are not limited to, the following: 1. Increased setbacks from the ordinary high water level; 2. Limitations on the natural vegetation to be removed or the requirement that additional vegetation be planted; and 3. Special provisions for the location, design, and use of structures, sewage treatment systems, watercraft launching and docking areas, and vehicle parking areas. VARIANCES: A. Variances may only be granted in accordance with Minnesota Statutes, Chapter 462, as applicable. A variance may not circumvent the general purposes and intent of this Ordinance. No variance may be granted that would allow any use that is prohibited in the zoning district in which the subj ect property is located. Conditions may be imposed in the granting of a variance to ensure compliance and to protect adjacent properties and the public interest. In considering a variance request, the Board of Adjustment must also consider whether the property owner has reasonable use of the land without the variance, whether the property is used seasonally or year-round, whether the variance is being requested solely on the basis of economic considerations, and the characteristics of development on adjacent properties. The Board of Adjustment shall hear and decide requests for variances in accordance with the rules that it has adopted for the conduct of business. When a variance is approved after the Department of Natural Resources has formally recommended denial in the hearing record, the notification of the approved variance required in Section 9.10 shall also include the Board of Adjustment's summary B. 24 C. 9.9 A. of the public record/testimony and the findings of facts and conclusions which supported the issuance of the variance. For existing developments, the application for variance must clearly demonstrate whether a conforming sewage treatment system is present for the intended use of the property. The variance, if issued, must require reconstruction of a non-conforming sewage treatment system. SUBDIVISION/PLATTING PROVISIONS: Land Suitability: Each lot created through subdivision, including planned unit developments authorized under Section 9.9 of this Ordinance, must be suitable in its natural state for the proposed use with minimal alteration. Suitability analysis by the local unit of government shall consider susceptibility to flooding, existence of wetlands, soil and rock formations with severe limitations for development, severe erosion potential, steep topography, inadequate water supply or sewage treatment capabilities, near-shore aquatic conditions unsuitable for water-based recreation, important fish and wildlife habitat, presence of significant historic sites, or any other feature of the natural land likely to be harmful to the health, safety, or welfare of future residents of the proposed subdivision of Prior Lake. B. Consistency with Other Controls: Subdivisions must conform to all official controls within the Prior Lake Subdivision Ordinance. A subdivision will not be approved where a later variance from one or more standards in official controls would be needed to use the lots for their intended purpose. In areas not served by publicly owned sewer and water systems, a subdivision will not be approved unless domestic water supply is available and a sewage treatment system consistent with Section 9.6 can be provided for every lot. Each lot shall meet the minimum lot size and dimensional requirements of Section 9.3, including at least a minimum contiguous lawn area, that is free of limiting factors sufficient for the construction of two standard soil treatment systems. Lots that would require use of holding tanks must not be approved. C. Information Requirements: Sufficient information must be submitted by the applicant for the community to make a determination of land suitability. The information shall include at least the following: 25 D. 1. Topographic contours at ten (10) foot intervals or less from United States Geological Survey maps or more accurate sources, showing limiting size characteristics; 2. The surface water features required in Minnesota Statutes, Section 505.02, Subdivision 1, to be shown on plats, obtained from United States Geological Survey quadrangle topographic maps or more accurate sources; 3. Adequate soils information to determine suitability for building and on-site sewage treatment capabilities for every lot from the most current existing sources or from field investigations such as soil borings, percolation tests, or other methods; 4. Information regarding adequacy of domestic water supply; extent of anticipated vegetation and topographic alterations; near-shore aquatic conditions, including depths, types of bottom sediments, and aquatic vegetation; and proposed methods for controlling storm water runoff and erosion, both during and after construction activities; 5. Location of 100 year floodplain areas and floodway districts from existing adopted maps or data; and 6. A line or contour representing the ordinary high water level, the fttoe" and the "top" of the bluffs, and the minimum building setback distances from the top of the bluff and the lake or stream. E. Dedications: When a land or easement dedication is a condi tion of subdivision approval, the approval must provide easements over natural drainage or ponding areas for management of storm water and significant wetlands. Platting: All SubdiY.!.:~.:!.9.~:~,~~he,~_.:s.;eate five, or more lots or parcels that are _~m'%.Q)m.ocea or less 1n size shall be processed as a :pnre:':''':':rrr'''':'a'''cco:rdance with Minnesota Statutes, Chapter 505. No permit for construction of buildings or sewage treatment systems shall be issued for lots created after these official controls were enacted unless the lot was approved as part of a formal subdivision. 26 F. 9.10 A. B. 9.11 A. Controlled Access or Recreational Lots: Lots intended as controlled accesses to public waters or for recreational use areas for use by non-riparian lots within a subdivision must meet or exceed the sizing criteria in Section 9.3 of this Ordinance. NOTIFICATIONS TO THE DEPARTMENT OF NATURAL RESOURCES: Copies of all notices of any public hearings to consider variances, amendments, or conditional uses under local shoreland management controls must be sent to the Commissioner or the Commissioner's designated representative and postmarked at least ten (10) days before the hearings. Notices of hearings to consider proposed subdivisions/plats must include copies of the subdivision/plat. A copy of approved amendments and subdivisions/plats, and final decisions granting variances or conditional uses under local shoreland management controls must be sent to the Commissioner or the Commissioner's designated representative and postmarked within ten (10) days of final action. PLANNED UNIT DEVELOPMENTS (PUDs): B. Types of PUDs Permissible: Planned unit developments (PUDs) are allowed for new projects on undeveloped land, redevelopment of previously built sites, or conversions of existing buildings and land. The land use districts in which they are an allowable use are identified in the land use district descriptions in Subd. 9.2.B.1 of this Ordinance and the official zoning map. Application for a PUD: The applicant for a PUD must submit the following documents prior to final action being taken on the application request: 1. A site plan and/or plat for the project showing locations of property boundaries, surface water features, existing and proposed structures and other facilities, land alterations, sewage treatment and water supply systems (where public systems will not.. be provided), and topographic contours at :iliIUii.:}:~ foot intervals or less. When a POD is a combIned commercial and recreational development, the site plan and/or plat must indicate and distinguish which buildings and portions of the project are residential, commercial, or a combination of the two. 27 2. A property owners association agreement (for residential PUDs) with mandatory membership, and all in accordance with the requirements of Section 9.l1.F of this Ordinance. 3. Deed restrictions, covenants, permanent easements or other instruments that: 1) properly address future vegetative and topographic alterations, construction of additional buildings, beaching of watercraft, and construction of commercial buildings in residential PUDs and 2) ensure the long term preservation and maintenance of open space in accordance with the criteria and analysis specified in Section 9.11.F of this Ordinance. 4. When necessary, a master plan/drawing describing the project and the floor plan for all commercial structures to be occupied. S. Those additional documents as requested by the Zoning Administrator that are necessary to explain how the PUD will be designed and will function. C. Site "Suitable Area" Evaluations: Proposed new or expansions to existing planned unit developments must be evaluated using the following procedures and standards to determine the suitable area for the dwelling unit/dwelling site density evaluation in Section 9.11.F of this Ordinance. 1. The project parcel must be divided into tiers by locating one or more lines approximately parallel to a line that identifies the ordinary high water level at the following intervals, proceeding landward. Shoreland Tier Dimensions General Development Lakes- First Tier General Development Lakes- Second and Additional Tiers Recreational Development Lakes Natural Environment Lakes All River Classes Unsewered (feet) 200 Sewered (feet) 200 267 267 400 300 200 267 320 300 28 2. The suitable area within each tier is next calculated by excluding from the tier area all wetlands, bluffs, or land below the ordinary high water level of public waters. This suitable area and the proposed project are then subject to either the residential or commercial planned unit development density evaluation steps to arrive at an allowable number of dwelling units or sites. D. Residential and Commercial PUD Density Evaluation: The procedures for determining the "base- density of a PUD and a density increase multipliers as follows. Allowable densities may be transferred from any tier to any other tier further from the waterbody, but must not be transferred to any other tier closer. 1. Residential PUD "Base" Density Evaluation. a) The suitable area within each tier is divided by the single residential lot size standard for lakes or, for rivers, the single residential lot width standard times the tier depth, unless the local unit of government has specified an alternative minimum lot size for rivers which shall then be used to yield a base density of dwelling units or sites for each tier. Proposed locations and numbers of dwelling units or sites for the residential planned until developments are then compared with the tier, density, and suitability analysis herein and the design criteria in Section 9.11.F of this Ordinance. 2. Commercial PUD "Base" Density Evaluation. a) Determine the average inside living area size of dwelling units or sites within each tier, including both existing and proposed units and sites. Computation of inside living area sizes need not include decks, patios, stops, steps, garages, or porches and basements, unless they are habitable space. 29 b) Select the appropriate floor area ratio from the following table. Commercial Planned Unit Development Floor Area Ratios* Public Waters Classes *Average unit floor area (sq. ft.) Sewered general development lakes; first tier on unsewered general develop- ment lakes; urban, agricultural, tributary river segments Second and additional tiers on unsewered general develop- ment lakes; recreational lake; transition and forested river segments Natural environment lakes and remote river segments 200 300 400 500 600 700 800 900 1,000 1,100 1,200 1,300 1,400 1,500 .040 .048 .056 .065 .072 .082 .091 .099 .108 .116 .125 .133 .142 .150 .020 .024 .028 .032 .038 .042 .046 .050 .054 .058 .064 .068 .072 .075 .010 .012 .014 .016 .019 .021 .023 .025 .027 .029 .032 .034 .036 .038 *For average unit floor areas less than shown, use the floor area ratios listed for 200 square feet. For areas greater than shown, use the ratios listed for 1,500 square feet. for recreational camping areas, use the ratios listed at 400 square feet. Manufactured home sites in recreational camping areas shall use a ratio equal to the size of the manufactured home, or if unknown, the ratio listed for 1,000 square feet. c) MUltiple the suitable area within each tier by the floor area ratio to yield total floor area for each tier allowed to be used for dwelling units or sites. d) Divide the total floor area by tier computed in Item C above by the average inside living area size determined in Item A above. This yields a base number of dwelling units and sites for each tier. 30 e) Proposed locations and numbers of dwelling units or sites for the commercial planned unit development are then compared with the tier, density and suitability analysis herein and the design criteria in Section 9.11.F of this Ordinance. 3. Density Increase Multipliers. a) Increases to the dwelling unit or dwelling site base densities previously determined are allowable if the dimensional standards in Section 9.3 of this Ordinance are met or exceeded and the design criteria in Section 9.11.F of this Ordinance are satisfied. The allowable density increases in Item b below will only be allowed if structure setbacks from the ordinary high water level are increased to at least fifty (50) percent greater than the minimum setback, or the impact on the waterbody is reduced an equivalent amount through vegetative management, topography, or additional means acceptable to the local unit of government and the setback is at least twenty-five (25) percent greater than the minimum setback. b) Allowable dwelling unit or dwelling density increases for residential commercial planned unit developments: site or Density Evaluation Tiers First Second Third Fourth Fifth Maxinu.un density increase within each tier (percent) 50 100 200 200 200 F. Maintenance and Design Criteria. 1. Maintenance and Administration Requirements. a) Before final approval of a planned unit development, adequate provisions must be developed for preservation and maintenance in perpetuity of open spaces and for the continued existence and functioning of the development. 31 b) Open Space Preservation. Deed restrictions, covenants, permanent easements, public dedication and acceptance, or other equally effective and permanent means must be provided to ensure long-term preservation and maintenance of open space. The instruments must include all of the following protections: 1. Commercial uses residential PUDs); prohibited (for 2. Vegetation and topographic alterations other than routine maintenance prohibited; 3. Construction of additional buildings or storage of vehicles and other materials prohibited; and 4. Uncontrolled beaching of watercraft prohibited. c) Development organization and functioning. Unless an equally effective alternative community framework is established, when applicable, all residential planned unit developments must use an owners association with the following features: 1. Membership must be mandatory for each dwelling unit or site purchaser and any successive purchasers; 2. Each member must pay a pro rata share of the association's expenses, and unpaid assessments can become liens on units or sites; 3. Assessments must be adjustable to accommodate changing conditions; and 4. The association must be responsible for insurance, taxes, and maintenance of all commonly owned property and facilities. 2 . Open Space Requirements. Planned uni t developments must contain open space meeting all of the following criteria: a) Ap;Oj~~~st ar;~f~ill.;tlill;~iRtiteli.ifrdwiiliii must be prese~e8~asmopen<<EJpace;~~m~lli~~~@>>~~~m~ 32 b) Dwelling units or sites, road rights-of-way, or land covered by road surfaces, parking areas, or structures, except water-oriented accessory structures or facilities, are developed areas and shall not be included in the computation of minimum open space; c) Open space must include areas with physical characteristics unsuitable for development in their natural state, and areas containing significant historic sites or unplatted cemeteries; d) Open space may include outdoor recreational facilities for use by owners of dwelling units or sites, by guests staying in commercial dwelling units or sites, and by the general public; e) Open space may include subsurface sewage treatment systems if the use of the space is restricted to avoid adverse impacts on the systems; f) Open space must not include commercial facilities or uses, but may contain water- oriented accessory structures or facilities; g) The appearance of open space areas, including topography, vegetation, and allowable uses, must be preserved by use of restrictive deed covenants, permanent easements, public dedication and acceptance, or other equally effective and permanent means; and h) The shore impact zone, based on normal structure setbacks, must be included as open space. For residential PUDs, at least fifty (50) percent of the shore impact zone area of existing developments or at least seventy (70) percent of the shore impact zone area of new developments must be preserved in its natural existing state. For commercial PUDs, at least fifty (50) percent of the shore impact zone must be preserved in its natural state. 3. Erosion Control and Storm Water Management. ~~S~~:~~~~dM 33 a) Be designed, and the construction managed, to minimize the likelihood of serious li.:lin occurring ei ther during or after constrG'c'€"f'OIi': This must be accomplished by limiting the amount and length of time of bare ground exposure. Temporary ground covers, sediment entrapment facilities, vegetated buffer strips, or other appropriate techniques must be used to minimize erosion impacts on surface water features. Brosion control plans approved by a soil and water conservation district may be required if project size and site physical characteristic warrant; and b) Be designed and constructed to effectively manage reasonably expected quantities and qualities of storm water runoff. Impervious surface coverage within any tier must not exceed twenty-five (25) percent of the tier area, except that for commercial PUDs thirty- five (35) percent impervious surface coverage may be allowed in the first tier of general development lakes with an approved storm water management plan and consistency with Section 9.4 of this Ordinance. 4. Centralization Centralization structures must standards: and Design of Facilities. and design of facilities and be done according to the following a) Planned unit developments must be connected to publicly owned water supply and sewer systems. b) Dwelling units or sites must be clustered into one or more groups and located on suitable areas of the development. They must be designed and located to meet or exceed the following dimensional standards for the relevant shoreland classification: setback from the ordinary high water level, elevation above the surface water features, and maximum height. Setbacks from the ordinary high water level must be increased in accordance with Section 9.3 of this Ordinance for developments with density increases; c) Shore recreation facilities, including but not 1 imi ted to swimming areas, docks I and watercraft mooring areas and launching ramps, must be centralized and located in areas suitable for them. Evaluation of suitability 34 must include consideration of land slope, water depth, vegetation, soils, depth to groundwater and bedrock, or other relevant factors. The number of spaces provided fore continuous beaching, mooring, or docking of watercraft must not exceed one for each allowable dwelling unit or site in the first tier (notwithstanding existing mooring sites in an existing commercially used harbor). Launching ramp facilities, including a small dock for loading and unloading equipment, may be provided for use by occupants of dwelling units or sites located in other tiers; d) Structures, parking areas, and other facilities must be treated to reduce visibility as viewed from public waters and adjacent shorelands by vegetation, topography, increased setbacks, color, or other means acceptable to the local unit of government, assuming summer, leaf-on conditions. Vegetative and topographic screening must be preserved, if existing, or may be required to be provided; e) Accessory structures and facilities, except water oriented accessory structures, must meet the required principal structure setback and must be centralized; and f) Water oriented accessory structures and facilities may be allowed if they meet or exceed design standards contained in Section 9.3.D.4 of this Ordinance are centralized. G. Conversions. Local governments may allow existing resorts or other land uses and facilities to be converted to residential planned unit developments if all of the following standards are met: 1. Proposed conversions must be initially evaluated using the same procedures for residential planned unit developments involving all new construction. Inconsistencies between existing features of the development and these standards must be identified. 2. Deficiencies involving water supply and sewage treatment, structure color, impervious coverage, open space, and shore recreation facilities must be corrected as part of the conversion or as specified in the conditional use peDmits. 35 9.12 A. 3. Shore and bluff impact zone deficiencies must be evaluated and reasonable improvements made as part of the conversion. These ~provements must include, where applicable, the following: a) Removal of extraneous buildings, docks, or other facilities that no longer need to be located in shore or bluff impact zones; b) Remedial measures to correct erosion sites and improve vegetative cover and screening of buildings and other facilities as viewed from the water; and c) If existing dwelling units are located in shore or bluff impact zones, conditions are attached to approvals of conversions that preclude exterior expansions in any dimension or substantial alterations. The conditions must also provide for future relocation of dwelling units, where feasible, to other locations, meeting all setback and elevation requirements when they are rebuilt or replaced. 4. Existing dwelling unit or dwelling site densities that exceed standards in Section 9.11. E of this Ordinance may be allowed to continue but must not be allowed to be increased, either at the time of conversion or in the future. Efforts must be made during the conversion to limit impacts of high densities by requiring seasonal use, improving vegetative screening, centralizing shore recreation facilities, installing new sewage treatment systems, or other means. DEVELOPMENT ON SUBSTANDARD LOTS Purpose: 1. The purpose of regulating development. on substandard lots of record is to coordinate development on substandard lots to insure environmentally sensitive development, ensure compatibility with surrounding existing development and to allow for combination of lots to the extent possible. 36 B. Substandard Lot: a) 1. Sewered Areas. 1. 2. The lot has been assessed a sewer and water assessment and will not require an on site septic system for development. 3. The lot was created compliant with official controls in effect at the time. 4. 5. The development plan must not exceed 30% impervious surface coveraqe. 6. 7. A Any cuttinq or existinq veqetation minimized to the extent possible. 9. A substandard lot, R-1 Zoned lot or record. which contains 79 feet or less of lot width measured at the required front yard setbac~ line, may utilize one five (5) foot side yard 8. is 37 setback. However, in no case shall a proposed bUilding encroach upon any recorded easement. 10. 11. Any cutting of existing vegetation is minimized to the extent possible. 12. An such add1t10nal measures. encroachment is andscap1ng or ot 13. The lot and ro osed structure must meet all other performance standards of the zoning an building codes. 2. Unsewered Lots a) If, in a group of two or more contiguous lots under the same ownership, any individual lot does not meet the requirements of Section 9.3.A of this Ordinance, the lot shall not be considered as a separate parcel of land for the purposes of sale or development. The lot must be combined with one or more contiguous lots so they e9Ual one or more parcels of land meeting the requ1rements of Section 9.3.A of this Ordinance as much as possible. 38 "SHORE6" NOTICE OF HEARING TO CONSIDER AMENDING PRIOR LAKE ZONING ORDINANCE 83-6 TO ADOPT REVISED SHORE LAND MANAGEMENT RULES You are hereby notified that the City Council will hold a hearing in the Prior Lake City Council Chambers at 4629 Dakota Street S.E., on Tuesday, February 16, 1993 at approximately 8:15 p.m. The pur~ose of the hearing is to discuss the new shoreland regulat10ns and amend the current Zoning Code to incorporate the new rules. Shoreland management rules have been promulgated by the Minnesota Department of Natural Resources (DNR). The City of Prior Lake is required by the DNR to adopt revised shoreland management re9ulations that are consistent with the State Rules. The DNR not1fied the City of Prior Lake that the new rules must be adopted by the City b~ March 4, 1993. This hearing is open to the public. Shoreland d1stricts are lands located within 1000 feet of a public lake as identified by the DNR. The community of Prior lake contains eleven public lakes including Upper and Lower Prior Lake as well as Spring Lake. The shoreland management model ordinance is approximately 50 pages long. A complete copy of the ordinance is on file with the Pr10r Lake Planning Department and can be reviewed by the ~ublic. The Planning commission considered a draft Shoreland Ord1nance, based upon the DNR model ordinance and recommended that the City Council adopt the draft. The City Council will consider the draft language recommended by the Planning Commission on February 16, 1993. Copies of the draft Shoreland Ordinance are available and can be obtained by contacting the Prior Lake Planning Department at 447-4230. If you desire to be heard in reference to this matter, you should attend this hearing. The City Council will accept oral and or written comments. If you have questions regarding this matter, contact the Prior Lake Planning Department at 447-4230. Prior Lake City Council Date Mailed: February 9, 1993 4629 Dakota St. SE., Prior Lake, Minnesota 55372 / Ph. (612) 447-4230 / Fax (612) 447-4245 AN EQUAL OPPORTUNITY EMPlOYER I I ....:.o...~ .1.' ! ~Y..~A1j'ON AREAl .. I i L_----tn.\.. L' ,.....: ,.....t\\.... .....i I I . , 1:. :;~ r' ... I'; i..~,. / i ...,1,/' ; , SHOREuND DISTRICTS: LANDS LOCAlS) . wlTHJ.N 1000.FEET OF A PUBLIC LAKE "1 ! ',,',. o' . .' 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