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D-3. Fretham 19th Addition Preliminary Plat ExtensionCITY OF 7700 Market Boulevard PO Box 147 Chanhassen, MN 55317 Administration Phone: 952.227.1100 Fax: 952.227.1110 Building Inspections Phone: 952.227.1180 Fax: 952.227.1190 Engineering Phone: 952.227.1160 Fax: 952.227.1170 Finance Phone: 952.227.1140 Fax: 952.227.1110 Park & Recreation Phone: 952.227.1120 Fax: 952.227.1110 Recreation Center 2310 Coulter Boulevard Phone: 952.227.1400 Fax: 952.227.1404 Planning & Natural Resources Phone: 952.227.1130 Fax: 952.227.1110 Public Works 7901 Park Place Phone: 952.227.1300 Fax: 952.227.1310 Senior Center Phone: 952.227.1125 Fax: 952.227.1110 Website www.cl.chanhassen.mn.us _D MEMORANDUM TO: Todd Gerhardt, City Manager FROM: Bob Generous, Senior Planner DATE: October 12, 2015 O SUBJ: Preliminary Plat Extension — Fretham 19th Addition Planning Case 2014-08 PROPOSED MOTION "The Chanhassen City Council approves a one-year extension until October 13, 2016 for the preliminary plat with variances for hardcover and setback for Fretham 19th Addition subject to the conditions of the preliminary plat approval." City Council approval requires a majority vote of City Council, EXECUTIVE SUMMARY The applicant is requesting a preliminary plat approval extension for Fretham 19"t' Addition to permit the development of four lots. Approval of the preliminary plat extension allows the property owner to proceed with the final platting of the property without going back through the preliminary plat review process. There is currently a home on the west side of the property with a non -conforming commercial building in which the property owner lives in one of the upper units on the east side of the property. The requested extension is necessary due to the owner's desire to remain on the property, ongoing negotiations between the developer and property owner and the developer's need to prepare appropriate engineering plans to meet the city requirements. The property is located at the intersection of Bretton Way and Teton Lane. Section 18-41 of the Chanhassen City Code requires that the subdivider request final plat approval within one year of the preliminary plat approval unless a request, in writing, is submitted to the City requesting for good cause for an extension of the preliminary plat. There have been no amendments to the City Code that would adversely affect the conditions of approval for the subdivision. All the relevant conditions of the preliminary plat approval shall remain in force for the development. All fees shall be those in effect at the time of final plat approval. Staff is recommending approval of the applicant's request for a one-year extension of the preliminary plat until October 13, 2016 to create four lots out of the property with the variances for hard cover and setback on Lot 1. The conditions of preliminary plat approval shall remain in effect for review of the final plat. Chanhassen is a Community for Life - Providing for Today and Planning for Tomorrow Todd Gerhardt Fretham 19a' Addition — Planning Case 2014-08 October 12, 2015 Page 2 of 3 BACKGROUND On October 13, 2014, the Chanhassen City Council approved the following: • Preliminary plat creating four lots, • Hard cover variances for Lots 1 and 3 of 7.4 percent (32.4 % hardcover) and 3.2 percent (28.2% hard cover), respectively; and • Front setback variance for Lot 1 of 10 feet (20 -foot front setback on Bretton Way). On March 11, 2013 the Chanhassen City Council approved the change in nonconforming uses at 6411 Bretton Way and adopted performance standards as a guide to the continuing use of the building. The Chanhassen City Council approved Curry Farms 21 Addition on July 15, 1988. RLS 105 dated 6/17/1988 creates the parcel around the building containing commercial uses. 1986 — Property zoned Single Family Residential (RSF) from RI a (residential agricultural). 1970s — Precision Manufacturing Company, parts manufacturing, tool and die. September 16, 1964 — Registered Land Survey 28 creates the parcels containing the house and buildings as well as many of the parcels in the neighborhood. SUBDIVISION The applicant is requesting preliminary plat approval to create four single-family lots with a variance from the 25 percent hardcover for Lots 1 and 3, and a setback variance for Lot 1 to move the buildable area away from the existing driveway which serves the property to the northeast. The hard cover request is to permit 32.4 percent impervious surface on Lot 1 and 28.2 percent impervious surface on Lot 3, which is necessary to accommodate an existing driveway serving the properties to the north and not benefiting these lots. The setback variance is to permit a 20 -foot setback from Bretton Way for Lot 1, which will move the house away from the existing driveway. Redevelopment of these parcels with new single-family homes would be beneficial to this neighborhood and the community and eliminate a non -conforming use. Todd Gerhardt Fretham 19a' Addition — Planning Case 2014-08 October 12, 2015 Page 3 of 3 COMPLIANCE TABLE L 90 feet at the building setback line permitted on cul-de-sac bubble. RECOMMENDATION Staff recommends that City Council approve a one-year extension until October 13, 2018 for the preliminary plat with variances creating four lots for Fretham 191 Addition, Planning Case #2014-08, subject to the conditions of the preliminary plat. ATTACHMENTS 1. Letter from Kayla Mack, LakeWest Development, LLC dated September 24, 2015. 2. Copy of Letter of Preliminary Plat Approval Dated October 15, 2014. 3. Reduced Copy Existing Conditions and Removal Plan dated 01/03/2014. 4. Reduced Copy Preliminary Plat dated 01/03/2014. 5. Reduced Copy Preliminary Grading Plan dated 01/03/2014. 6. Reduced Copy Preliminary Landscape Plan dated 01/03/2014. g9plan\2014 planning cases\2014-08 fretham 19th addition\preliminary plat extension memo 10-12-15.doc Area (sq. ft.) Frontage (ft.) Depth (ft.) Notes Code 15,000 90 125 Lot 1 17,771 97 199 Corner lot Lot 2 15,431 120 202 Lot 3 17,034 91 162 Lot 4 15,469 73 186 TOTAL 65,705 1.51 acres L 90 feet at the building setback line permitted on cul-de-sac bubble. RECOMMENDATION Staff recommends that City Council approve a one-year extension until October 13, 2018 for the preliminary plat with variances creating four lots for Fretham 191 Addition, Planning Case #2014-08, subject to the conditions of the preliminary plat. ATTACHMENTS 1. Letter from Kayla Mack, LakeWest Development, LLC dated September 24, 2015. 2. Copy of Letter of Preliminary Plat Approval Dated October 15, 2014. 3. Reduced Copy Existing Conditions and Removal Plan dated 01/03/2014. 4. Reduced Copy Preliminary Plat dated 01/03/2014. 5. Reduced Copy Preliminary Grading Plan dated 01/03/2014. 6. Reduced Copy Preliminary Landscape Plan dated 01/03/2014. g9plan\2014 planning cases\2014-08 fretham 19th addition\preliminary plat extension memo 10-12-15.doc LAKE WMST DEVELOPMENT. LLC Thursday, September 24, 2015 Robert Generous Senior Planner City of Chanhassen 7700 Market Boulevard PO Box 14 Chanhassen, MN 55317 O: 952-227-1131 E: bgenerous@ci.chanhassen.mn.us RE: Fretham 191h Addition Extension Request Fretham 191h Addition — Planning Case #2014-08 Dear Mr. Generous, Lake West Development is currently making progress on the development of the final plat for Fretham 19th Addition and would like to continue with the progress for this project. We received approval on October 13, 2014, by the Chanhassen City Council for the preliminary plat. We respectfully request an extension on the application for approval of the final plat through October 13, 2016 in order to provide the necessary items required for a final plat approval. We are actively continuing work on this development, however we are working through certain items with the existing land owner that have caused project delays outside of our control. We appreciate the City's continued partnership in helping us make this development a reality. Please let me know if you have any questions regarding our request. Sincerely, $u� Kayla Mack Development Assistant, Lake West Development 14525 Highway 7, Suite 265 Minnetonka, MN 55345 O: 952-653-1346 E: kayla@lwestdev.com EC: Curt Fretham, Lake West Development Jon Fletcher, Lake West Development Encl: Letter from City of Chanhassen dated September 11, 2015 Lake West Development 114525 Highway 7, Suite 265, Minnetonka, MN 55345 1 Phone 952-930-3000 Senior Center 1. The easements per Documents T15149 and T17882 must be extinguished prior to Phone: 952.227.1125 final plat approval. Fax: 952.227.1110 Website 2. Prior to final plat submittal the developer shall coordinate with the gas company www.ci.chanhassen.mfl.us to verify the location of the gas line. If the gas line is not within an existing easement the developer must provide and dedicate the necessary easement or relocate the gas line to lie within an easement area in accordance to CenterPoint Energy's specifications. SCANNED Chanhassen is a Community for Life - Providing for Today and Planning for Tomorrow October, 15, 2014 cliff OP CHMSEN 7700 Market Boulevard Mr. Ban Wikstrom PO Box 147 Lakewest Development, LLC Chanhassen, MN 55317 14525 Highway 7, Suite 102 Minnetonka, MN 55345 Administration Phone: 952.227.1100 Re: Fretham 190' Addition —Planning Case #2014-08 Fax: 952.227.1110 Dear Mr. Wikstrom: Building Inspections Phone: 952.227.1180 Fax: 952.227.1190 This letter is to confirm that on October 13, 2014, the Chanhassen City Council approved the following: Engineering Phone: 952.227.1160 • Preliminary plat creating four lots, Fax: 952.227.1170 Finance • Hard cover variances for Lots 1 and 3 of 7.4 percent (32.4 % hardcover) and Phone: 952.227.1140 3.2 percent (28.2% hard cover), respectively, and Fax: 952.227.1110 • Front setback variance for Lot 1 of 10 feet (20 -foot front setback on Bretton Park & Recreation Way) subject to the following conditions: Phone: 952.227.1120 Fax: 952.227.1110 Building; Recreation Center 2310 Coulter Boulevard I. Appropriate permit(s) required for the demolition or moving of any existing Phone: 952.227.1400 Structures. Fax: 952.227.1404 2 A final grading plan and soils report must be submitted to the Inspections Planning & Division before building permits can be issued. Natural Resources Phone: 952.227.1130 3. Retaining walls over four feet high require a permit and must be designed by a Fax:952.2271110 professional engineer. Public works 4• Each lot must be provided with separate sewer and water services. 7901 Park Place Phone: 952.227.1300 Engineering: Fax: 952.227.1310 Senior Center 1. The easements per Documents T15149 and T17882 must be extinguished prior to Phone: 952.227.1125 final plat approval. Fax: 952.227.1110 Website 2. Prior to final plat submittal the developer shall coordinate with the gas company www.ci.chanhassen.mfl.us to verify the location of the gas line. If the gas line is not within an existing easement the developer must provide and dedicate the necessary easement or relocate the gas line to lie within an easement area in accordance to CenterPoint Energy's specifications. SCANNED Chanhassen is a Community for Life - Providing for Today and Planning for Tomorrow Mr. Ben Wikstrom October 15, 2014 Page 2 3. The drainage and utility easements on the north side of Lots 1 and 3 can be reduced to 10 feet. 4. Any portion of the gravel surface on the north side of the property that is disturbed with this development shall be paved. 5. It is the developer's responsibility to coordinate access to the gravel surface with the affected residents during construction. 6. The proposed retaining wall shall comply with the following: a) A building permit is required, b) The design shall comply with the Minnesota Department of Transportation standards for retaining walls, c) The drainage design for the wall shall consider the surface runoff that will sheet drain towards the wall, d) The wall crosses over property lines and therefore it shall be built in conjunction with the subdivision and a homeowners association must be formed to own and maintain the wall, e) An encroachment agreement will be required before the retaining wall building permit is issued if the retaining wall is to be installed within the platted drainage and utility easement. f) The developer shall ensure that the wall construction does not compromise the private sanitary sewer service or the gas line in the area. g) The developer shall install a barrier (fence, berm, landscaping or other barrier) between the private gravel street and the top of the retaining wall. 7. All driveways within the development shall meet the 10% maximum driveway slope. The developer is encouraged to consider a driveway design that many homeowners desire which includes a landing (typically 3%) at each end of the driveway (at the street and at the garage). 8. Sewer and water services to each of the proposed four lots were installed by the Curry Farms 2' Addition developer; therefore, the sewer and water lateral fees do not apply. 9. Prior to final plat approval the developer shall identify which of the four lots will receive the City SAC and City WAC credit. 10. The remaining three lots shall be subject to the City SAC and WAC, 30% of which will be collected with the final plat at the rate in effect at the time of final plat approval. 11. All lots are subject to the Metropolitan Council Environmental Services Sanitary Access Charge (MCES SAC), which is paid with the building permit. 12. A portion of the private sanitary sewer service to the home located on 6281 Teton Lane will encroach into the platted drainage and utility easement; therefore, an encroachment agreement is required. Mr. Ben Wikstrom October 15, 2014 Page 3 Natural Resources: 1. Tree protection fencing will be required at the edge of grading limits near any preserved trees. It shall be installed prior to grading. 2. Trees required to be planted are as follows: Lot 1— 5 trees, Lot 2 — 2 trees, Lot 3 — 4 trees, Lot 4 — 7 trees. Plannine: 1. The developer shall perform a phase I environmental audit on the property surrounding the commercial building prior to recording the final plat. 2. The existing buildings on the property, including sheds, house and the long building must be demolished prior to recording of the final plat. 3. A ten -foot building setback from the access easement (Doc. No. 14111 and 14055) is required. 4. The developer shall work with the neighboring property owners to clarify the use, permitted users and maintenance responsibility of the easement. Specifically, the easement must assure that the property owner for Lot 2 may access the rear of their property via this easement. The developer shall ensure that the necessary easement is in place so that the future property owner of Lot 2 can access the northern rip of the property. A revised easement document shall be recorded with the plat. Water Resources: The applicant shall either procure a drainage and utility easement over the entirety of the culvert or they shall install a catch basin manhole in Bretton Way just west of the driveway for Lot 4 and tie this into the existing public storm sewer system. In either event, the applicant shall model the conveyance choice to assure adequate capacity and provide a safe and stable emergency overflow. 2. The applicant must provide clarification to resolve the disparate impervious surface calculations and assure adequate volume reduction. 3. The applicant shall provide infiltration/water quality volume adequate to address the volume reduction requirements for the runoff from all impervious surfaces in the development. 4. The applicant must provide a detail of the rain gardens which is consistent with the recommendations and requirements of the Minnesota Stormwater Manual before final plat approval. 5. The applicant shall provide a detailed planting schedule for the rain garden areas. 6. The applicant shall provide a hydrograph showing the duration of ponding is less than 48 hours and shall reduce the ponding depth so the bounce does not exceed MN Storm Water Manual guidance or correct the soils and demonstrate that they are commensurate with HSG A or B soils. Mr. Ben Wikstrom October 15, 2014 Page 4 7. The side slopes into the rain gardens shall not exceed three horizontal feet for every one vertical foot. 8. Discharge velocities into the rain gardens shall not exceed four cubic feet per second or the applicant shall provide scour calculations and adequate energy dissipation to assure erosion will not be an issue. 9. Pre-treatment shall be provided to minimize sediment deposition into the rain gardens. 10. Drain file services must be provided to all properties that will flow from the back to the front of the lot. 11. Erosion Control plan /SWPPP must include all elements required under Chapter 19 of City Code. 12. Engineer estimate of quantities for erosion control and sediment prevention, including those necessary for final site stabilization, shall be provided and used to calculate escrow amount. 13. A Storm Water Management Utility fee estimated to be $9,168.00 shall be paid with final plat. Final plat documents must be submitted to the City 35 days prior to the City Council meeting in which you wish to have your final plat approved. Conditions of the preliminary plat must be addressed for final plat approval. Final Plat approval must be requested within one year of preliminary plat approval. Enclosed is the list of items required for submittal for final plat approval. Should you have any questions, please contact me at (952) 227-1131 or by email at bgenerousna,,ci.chanhassen.mn.us. Since Robert Generous, AICP Senior Planner Enclosure c: Naomi Carlson ec: Kate Aanenson, Community Development Director Alyson Fauske, Assistant City Engineer Todd Gerhardt, City Manager Terry Jeffery, Water Resources Coordinator Jerry Mohn, Building Official Marty Campion g:\plan\2014 planning cases\2014-08 fretham 19th addition�appmval letter prelim plat and variance.doc ITEMS REQUIRED FOR FINAL PLAT CONSIDERATION The following items are required to be submitted a minimum of 30 days prior to City Council meeting and payment of a $250.00 final plat review fee: Submit three (3) sets of full size, 50 scale construction plans and specifications for staff review and redline. • Utility plans shall show both plan view and profiles of all utilities (sanitary sewer, water and storm sewer lines). The plan view must show all drainage and utility easements. • Grading and drainage plans shall show dwelling type and elevations, wetlands and wetland buffer areas, stormwater pond NWL and HWL, EOF and catch basin and storm manhole numbers. • The construction plans and specifications shall be in accordance to the City's latest edition of Standard Specifications & Detail Plates. • The plans shall include traffic signage and street light placement. 2. Drainage calculations for water quantity and quality ponding with maps showing drainage areas for pre -and post -development conditions and contributing areas to catch basins. 3. Hydraulic calculations and drainage map for the storm sewer design. 4. Tree Preservation Easements (if applicable). 5. Trail Easements (if applicable). 6. Engineer's Cost Estimate of Improvements: a. Sanitary sewer system. b. Water system. c. Storm sewer drainage system including cleaning and maintenance. d. Streets, sidewalk and trails. e. Erosion control. f. Site restoration (seeding, sodding, etc.). g. Site grading h. Street lights & signs i. Engineering, surveying & inspection j. Landscaping Five (5) sets (folded) of final plat, one (1) set of reductions (8Y2' x 11"), and a digital copy in .tif format. 8. Digital copy of the legal description of the property in a .doc format. 9. Lot tabulations. Failure to provide any of the above items by the required deadline will result in delaying consideration of final plat before the City Council. Updated 11-29-06 g:\eng\forms\final plat submittal.doc g > a ss gag Ff •••••e.,n�em9.�.7 ^�sn ns 6 d- O (3 $ N F �7 a�jFr O q / M _ _ _ _ _ _ _ _ _ _ I � g > a ss gag Ff •••••e.,n�em9.�.7 ^�sn ns 6 5 F a�jFr f q / M p n e __________�!__� _d�li ! ��■ ;BFa g f399 @9 @� g P €,g F 8558€ oo"s�nil9 i t jg raF3 6 �?agym z 4 a 9E OZ(l ,•�� qq 6 iis �F� ��i,.�(ylll jj ar�,RR��i$Y i�e tl � i w .. 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