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CC Staff Report 03-26-2012 101 le-1. MEMORANDUM CITY OF TO: Todd Gerhardt, City Manager CHANHASSEN FROM: Bob Generous, Senior Planner 7700 Market Boulevard DATE: March 27, 2012 6K-1 PO Box 147 Chanhassen, MN 55317 SUBJ: Final Plat Approval for Lakeside Sixth Addition Planning Case No. 06 -26 Administration Phone: 952.227.1100 PROPOSED MOTION Fax: 952.227.1110 "The Chanhassen City Council approves the final plat for Lakeside Sixth Addition subject Building Inspections Phone: 952.227.1180 to the conditions in this staff report. „ Fax: 952.227.1190 City Council approval requires a majority vote of City Council present. Engineering Phone: 952.227.1160 Fax: 952.227.1170 PROPOSAL SUMMARY Finance The applicant is requesting final plat approval for Lakeside Sixth Addition creating Phone: 952.227.1140 Fax: 952.227.1110 10 lots and 2 outlots from Outlot E, Lakeside and Outlot C, Lakeside Third Addition. All subdivision improvements, streets, sewer, water, storm water and site grading will be Park & Recreation completed as part of phase 1 of the development. Phone: 952.227.1120 Fax: 952.227.1110 The subdivision complies with the Planned Unit Development - Residential (PUD -R) Recreation Center Sixth Addition. 2310 Coulter Boulevard Phone: 952.227.1400 BACKGROUND Fax: 952.227.1404 On November 26, 2007, the Chanhassen City Council approved the amendment to the Planning & Planned Unit Development (PUD 06 -26) development design standards section c. Natural Resources Phone: 952.227.1130 Setbacks to allow a 15 -foot, rather than a 20 -foot separation, between the townhouse Fax: 952.2271110 units and adjust the wetland setback consistent with wetland setback requirements in City Code. Public Works 7901 Park Place On August 13, 2007, the Chanhassen City Council approved the final plat for Phone: 952.227.1300 Lakeside Third Addition creating five outlots. Fax: 952.227.1310 On October 23, 2006, the Chanhassen City Council approved the final plat for Senior Center Lakeside consisting of 18 lots, 10 outlots and right -of -way for public streets. The Phone: 952.2271125 Fax: 952.227.1110 first phase of the development consisted of the community building and stormwater pond, 11 lots for townhouses on the west side of the development (Wooddale Web Site Builders, Inc.), 4 lots for twin homes on the east side of the development (Charles www.ci.chanhassen.mn.us Cudd Company), Outlot A which will contain the private street and utilities for the project, and Outlots I and J, the recreational beachlot site. Chanhassen is a Community for Life - Providing for Today and Planning for Tomorrow Todd Gerhardt Lakeside Sixth Addition Final Plat March 26, 2012 Page 2 On Jul 24, 2006, the Chanhassen City Council approved the following: July Y pp : g A. Rezoning of the property located within the Lakeside development, from High Density Residential District (R12) to Planned Unit Development - Residential (PUD -R) incorporating the development design standards contained within the staff report subject to the final plat approval for the Lakeside development. B. Preliminary Plat for Lakeside. C. Site Plan for 231 housing units and a community building with pool, with a Variance for building height for the condominium units consistent with the Building elevations prepared by Harriss Architects. D. Conditional Use Permit for a recreational beach lot with a Variance from the requirement that 80 percent of the units be within 1,000 feet of the recreational beach lot FINAL PLAT REVIEW The applicant is requesting final plat approval for the Lakeside Sixth Addition consisting of 10 lots and 2 outlots. This phase includes two three -unit townhouses and one four -unit townhouse. LAKESIDE SIXTH ADDITION PLAT FILE NO C.R. DOC- NO. I � f r y.y ,� \\ E 1 Z I 3 1 9 I g LAKESIDE t, 3 c 9 2 7 1 .. E 1 I 0\11 t A 1 0 7 f� : 441 A K E 5.„ E 1 ! 9 1 A r L 2 e n Y A A K E y ,. . F e U• a 1 W .. it • ay.u•.. rua. • �• ....•M. °.�. OOFLOT A .n.r c.. sr' Has idi'3 Ctr PIZNEER v GRADING Todd Gerhardt Lakeside Sixth Addition Final Plat March 26, 2012 Page 3 The area within the final plat was mass graded with the first addition. The grading plan submitted with the Sixth Addition changes the building styles as follows: Original Proposed Lot 1, Block 1 Rambler Lookout Lot 3, Block 1 Lookout Walkout All lots within Block 2 Lookouts Walkouts A deeper swale behind Block 1 will be graded when the building is constructed in order to achieve the proposed building styles. The water feature that was originally proposed behind the lots in Block 2 limited the building styles to lookouts. Now that this area will be a greenway minor grading with the building construction can achieve walkout lots. The proposed grading changes meet the City's minimum requirements. MISCELLANEOUS Walls and projections within five feet of property lines are required to be of one -hour fire - resistive construction. This is necessary due to the adoption of the 2006 IBC and IRC by the State of Minnesota in 2007, which changed the distance from property lines at which fire - resistive construction is required. COMPLIANCE There are no minimum lot dimensions or lot areas established for the Lakeside Planned Unit Development. The overall project is limited to 231 dwelling units consisting of twin homes, townhouses, and multi- family buildings and their ancillary uses. Setbacks The PUD ordinance requires setbacks from roadways and exterior roe lines. The following q Y property rtY g table displays those setbacks. Setback Standards Highway 212 50 feet East(Perimeter) Lot Line 50 feet — townhouses 30 feet - twin homes; Buildin g Height ht — Condominiums with a minimum of 30 feet Lyman Boulevard 50 feet/30 feet for beach lot West(Perimeter) Lot Line 50 feet Twin Home separation between buildings 15 feet Townhouse separation between buildings 15 feet Todd Gerhardt Lakeside Sixth Addition Final Plat March 26, 2012 Page 4 Setback Standards Minimum Driveway length (to back of curb, 25 feet trail or sidewalk) Hard Surface Coverage 50 % * Wetland: Buffer and buffer setback 20 and 30 Lake Riley 75 feet # Decks, patios, porches, and stoops may project up to seven (7) feet in to the required yard. * The entire development, including the public and private streets and Outlots, may not exceed 50 percent hard coverage. Individual lots will exceed the 50 percent site coverage. LOT INFORMATION TABLE Parcel Area (sq. ft.) Frontage (ft.) Depth (ft.) Notes L 1 B1 4,042 47 86 Town house unit L2 B1 3,612 42 86 Town house unit L3 B1 4,042 47 86 Town house unit L1 B2 4,042 47 86 Town house unit L2 B2 3,612 42 86 Town house unit L3 B2 4,042 47 86 Town house unit L1 B3 4,042 47 86 Town house unit L2 B3 3,612 42 86 Town house unit L3 B3 3,612 42 86 Town house unit L4 B3 4,042 47 86 Town house unit Outlot A 18,020 Common Area Outlot B 9,133 Common Area Total 65,853 1.5118 acres Averages 3,870 44.5 86 Town house unit REVIEW CONDITIONS OF APPROVAL (from Preliminary Plat) 1. The developer must submit a list of proposed street name(s) and an addressing plan to Chanhassen Building Official and Chanhassen Fire Marshal for review and approval prior to final plat of the property. *This condition has been met. Riley Lake Drive (main road) and Riley Lake Trail (east -west street). 2. Each lot must be provided with separate sewer and water services. *This condition has been met. 3. Additional fire hydrants will be required. Please contact the Chanhassen Fire Marshal for exact location of additional hydrants and any to be relocated. Todd Gerhardt Lakeside Sixth Addition Final Plat March 26, 2012 Page 5 *This condition has been met. 4. A minimum buffer of 16.5 to 20 feet shall be preserved around the perimeter of the wetland. All structures (including parking lots) shall maintain a 40 -foot setback from the wetland buffer. All trails and retaining walls shall be modified to remain outside the wetland buffer. The plans shall be revised to reflect the required wetland buffer and wetland buffer setback. Wetland buffer areas shall be preserved, surveyed and staked in accordance with the City's wetland ordinance. The applicant shall install wetland buffer edge signs before construction begins and shall pay the City $20 per sign. *This condition is superseded by the development design standards which require a 20- foot buffer and 30 -foot setback. 5. The plans shall be revised to depict the OHW of Lake Riley, which is 865.3. All structures shall be located a minimum of 75 feet from the OHW. The proposed fire pit shall be located a minimum of 75 feet from the OHW and shall be buffered from the lake by vegetation. No grading or intensive clearing of vegetation shall occur within the shore impact zone (all areas within 37.5 feet of the OHW). *This condition does not apply to this phase. 6. A conditional use permit (CUP) shall be obtained from the City prior to the operation of a recreational beach lot. *This condition has been met. 7. All existing amenities and/or structures (including any docks, existing beach that is not proposed to remain and the boat launch) on Outlot B, North Bay shall be removed. A boat launch is not permitted. *This condition has been met. 8. The location of the building on Lot 1, Block 1 shall be adjusted to respect all drainage and utility easements. *This condition does not apply to this phase. 9. The applicant shall supply details about the water feature between the rear yards of the units in Block 3, specifically the source for the water in the water feature. As an alternative to the current proposal, the applicant should consider revising the plans to utilize storm water as an amenity as part of a rain garden system in this area. *This condition no longer applies. The water feature has been eliminated due to costs. Todd Gerhardt Lakeside Sixth Addition Final Plat March 26, 2012 Page 6 10. The applicant shall provide additional information detailing the proposed emergency overflow (EOF) route from Pond 1 to Lake Riley. *This condition has been met. 11. The grading and landscaping proposed around Pond 1 shall be revised to provide a flat, open area so maintenance equipment can access the flared end sections from Lake Riley Road East without damaging the retaining wall or the landscaping and without being below the NWL of the pond. *This condition has been met. 12. All storm water infrastructure, including catch basins, storm sewer pipes, manholes, flared - end sections, outlet structures, ponds and swales, shall be owned, operated and maintained by the developer and, eventually, the homeowners association. Prior to final plat recording, the developer shall enter into an agreement with the City that outlines the parameters of operation, inspection and maintenance of the storm water infrastructure. This agreement shall be transferred to the homeowners association prior to the developer relinquishing responsibility for the development. *This condition still applies. 13. The SWPPP shall be provided to the City for review by the Carver Soil and Water Conservation District. *This condition shall be modified as follows: The SWPPP should be revised to include the grading plan, erosion and sediment control plan. 14. The plans shall be revised to show that erosion control blanket will be installed over all areas with 3:1 slopes or steeper. *This condition still applies. 15. A stable emergency overflow (EOF) for the pond shall be provided. The EOF could consist of riprap and geotextile fabric or a turf re- enforcement mat (a permanent erosion control blanket). A typical detail shall be included in the plan. *This condition has been met. 16. Energy dissipation shall be provided for all inlets and outlets within 24 hours of installation *This condition still applies. 17. Wimco -type or other comparable inlet controls shall be used and installed within 24 hours of installation of the inlets. Perimeter controls and inlet protection shall be in place and maintained as needed until 70% of the vegetation is established. Todd Gerhardt Lakeside Sixth Addition Final Plat March 26, 2012 Page 7 i *This condition still applies. 18. Typical building lot controls shall be shown on the plan in a typical detail. These controls shall include perimeter controls (silt fence), rock driveways, street sweeping, inlet control and temporary mulch after final grade and prior to issuing the Certificate of Occupancy (CO). This condition still applies. 19. The proposed storm water pond shall be used as a temporary sediment basin during mass grading. The pond shall be excavated prior to disturbing up- gradient areas. Plans shall show how the temporary basin will be constructed and how water will be diverted to the temporary basin. Berms and /or ditches may be needed to divert water to the pond, and temporary pond outlets are needed. The outlet could be a temporary perforated standpipe and rock cone. The plans shall be revised to include a detail for the temporary pond outlet. *This condition has been met. 20. The proposed silt fence along Wetland Basin B shall be Type 2 silt fence, as specified in Chanhassen Standard Detail Plate 5300. Type 1 silt fence may be used for the remainder of the site. The grading plan shall be revised to show the proposed silt fence following the grading limits for the site and shall be located outside of the required 16.5 -foot wetland buffer. Silt fence shall be placed at the proposed high water level elevation of the proposed storm water pond. *This condition no longer applies. 21. Street gutters and catch basins are considered "surface waters" and shall be protected from exposed soils with a positive slope within 200 linear feet. Following installation of curb and gutter, silt fence shall be installed curbside along all positive slopes to the street with exposed soils. *This condition shall be modified as follows: Street g utters and catch basins are considered "surface waters" and shall be protected from exposed soils with a positive slope within 200 linear feet within 24 hours of connection. 22. Plans shall be revised to show erosion and sediment control measures for the road ditch along Lyman Boulevard. All perimeter controls shall be inspected by the city and the SWCD prior to grading. *This condition does not apply to this phase. 23. Details for concrete washout areas where drivers will wash out their trucks and how the water will be treated should be developed and included in the SWPPP. Todd Gerhardt Lakeside Sixth Addition Final Plat March 26, 2012 Page 8 *This condition still applies. 24. Street cleaning of soil tracked onto public streets shall include daily street scraping and street sweeping as needed. *This condition still applies. 25. At this time, the estimated total SWMP fee, due payable to the City at the time of final plat recording, is $195,293. *This condition shall be modified as follows: The total SWMP fee, due payable to the City at the time of final plat recording, is $20,790.00. 26. The owner /operator of the proposed development shall apply for and obtain permits from the appropriate regulatory agencies (e.g., Riley- Purgatory -Bluff Creek Watershed District, Minnesota Pollution Control Agency (NPDES Phase II Construction Site Permit), Minnesota Department of Natural Resources (for dewatering), Minnesota Department of Transportation, Minnesota Department of Health) and comply with their conditions of approval. *This condition still applies. 27. Tree protection fencing shall be installed prior to construction around all areas designated for preservation and/or at the edge of proposed grading limits. *This condition still applies. 28. A walk - through inspection of the silt/tree preservation fence shall be required prior to construction. *This condition still applies. 29. No burning permits shall be issued for tree removal. All trees removed on site shall be chipped and used on site or hauled off. *This condition still applies. 30. The applicant shall increase landscape plantings along the east property line to minimum bufferyard requirements. *This condition does not apply to this phase. 31. No trees shall be removed behind the northwestern corner of the silt fence as shown on grading plans dated 05/19/06. *This condition still applies. Todd Gerhardt Lakeside Sixth Addition Final Plat March 26, 2012 Page 9 32. A total of 139 trees shall be planted in the development as required for canopy coverage. *This condition still applies. 33. All existing buildings, driveways and accessory structures must be removed before grading commences. *This condition has been met. 34. The lowest floor elevation of 106 Lakeview Road East must be field verified. *This condition has been met. 35. The high water level of the proposed pond must be minimum three feet lower than the lowest floor elevation of the adjacent homes along Lakeview Road East. *This condition has been met. 36. The high water level of the wetland must be determined. *This condition has been met. 37. The proposed grading in the northwest corner near the wetland needs to be adjusted so that the floor elevation of the homes within Lot 13, Block 2 comply with city standards. *This condition has been met. 38. Pavement grades at the following locations must be adjusted so that the grade does not exceed 7 %: West of Building A, and the northern street extending from the Lakeview Road East intersection. *This condition has been met. 39. Private driveway grades shall not exceed 10 %. *This condition has been met. 40. Ground (ie. non- paved) surface grades shall not be less than 2 %. *This condition has been met. 41. Emergency overflow locations and elevations must be shown on the plan. *This condition has been met. Todd Gerhardt Lakeside Sixth Addition Final Plat March 26, 2012 Page 10 42. High point elevations between the catch basins must be shown along the east side of Block 2. *This condition has been met. 43. Each lot must be provided with separate sewer and water services. *This condition has been met. 44. An easement is required from the appropriate property owner for any off -site grading. The developer must receive approval from the City of Eden Prairie for grading in to the Outlot for Bearpath 3` Addition. *This condition does not apply to this phase. 45. If importing or exporting material for development of the site is necessary, the applicant will be required to supply the City with detailed haul routes. *This condition does not apply. 46. Building permits are required for all retaining walls four feet tall or higher and must be designed by a Structural Engineer registered in the State of Minnesota. *This condition still applies. 47. All sanitary sewer, watermain and storm sewer within this site shall be privately owned and maintained. *This condition still applies. 48. The watermain extension from Lyman Boulevard must be wet - tapped and must be done under traffic. *This condition has been met. 49. The developer must provide ingress /egress to the North Bay residents for the duration of the utility extension within Lake Riley Road East. *This condition does not apply to this phase. 50. Each new lot is subject to the sanitary sewer and water hookup charges. The 2006 trunk hookup charge is $1,575 for sanitary sewer and $4,078 for watermain. Sanitary sewer and watermain hookup fees may be specially assessed against the parcel at the time of building permit issuance. All of these charges are based on the number of SAC units assigned by the Met Council and are due at the time of building permit issuance. *This condition shall be modified as follows: a portion of the sanitary sewer and water Todd Gerhardt Lakeside Sixth Addition Final Plat March 26, 2012 Page 11 hookup charges must be paid with the final plat: $632.00 for sanitary sewer hookup and $1,715.00 for watermain hookup. The remaining $1,475.00 sanitary sewer and $4,002.00 watermain hookup fees must be paid with the building permit and can be specially assessed against the parcel at the time of building permit issuance. All of these charges are based on the number of SAC units assigned by the Met Council and are due at the time of building permit issuance 51. The 15 -foot wide sanitary sewer easement on the northwest side of the property must be vacated. *This condition does not apply to this phase. 52. The proposed pool house must not lie within the drainage and utility easement. *This condition has been met. 53. The payment of full park dedication fees at the rate in force upon final plat approval in lieu of parkland dedication. *This condition can be modified as follows: The developer shall pay $38,000.00 park dedication fees for the Sixth Addition of the development prior to final plat recording in lieu of parkland dedication. 54. The applicant shall provide all design, engineering, construction and testing services required of the "Lyman Boulevard Trail." All construction documents shall be delivered to the Park and Recreation Director and City Engineer for approval prior to the initiation of each phase of construction. The trail shall be 10 feet in width, surfaced with bituminous material, and constructed to meet all city specifications. The applicant shall be reimbursed for the actual cost of construction materials for the Lyman Boulevard Trail. This reimbursement payment shall be made upon completion and acceptance of the trail and receipt of an invoice documenting the actual costs for the construction materials utilized in its construction. *This condition has been met. 55. The trail connection at the northeast corner of the site connecting the Lakeside area to the future Highway 212 trail and underpass, as depicted in the applicant's plans, is completed. *This condition does not apply to this phase. RECOMMENDATION Staff recommends that the City Council approve the Final Plat for Lakeside Sixth Addition creating 10 lots and 2 outlots (plans prepared by Pioneer Engineering, date stamped February 17, 2012) subject to the following conditions: Todd Gerhardt Lakeside Sixth Addition Final Plat March 26, 2012 Page 12 1. All storm water infrastructure, including catch basins, storm sewer pipes, manholes, flared - end sections, outlet structures, ponds and swales, shall be owned, operated and maintained by the developer and, eventually, the homeowners association. Prior to final plat recording, the developer shall enter into an agreement with the City that outlines the parameters of operation, inspection and maintenance of the storm water infrastructure. This agreement shall be transferred to the homeowners association prior to the developer relinquishing responsibility for the development. 2. The SWPPP should be revised to include the grading plan, erosion and sediment control plan. 3. The plans shall be revised to show that erosion control blanket will be installed over all areas with 3:1 slopes or steeper. 4. Energy dissipation shall be provided for all inlets and outlets within 24 hours of installation 5. Wimco -type or other comparable inlet controls shall be used and installed within 24 hours of installation of the inlets. Perimeter controls and inlet protection shall be in place and maintained as needed until 70% of the vegetation is established. 6. Typical building lot controls shall be shown on the plan in a typical detail. These controls shall include perimeter controls (silt fence), rock driveways, street sweeping, inlet control and temporary mulch after final grade and prior to issuing the Certificate of Occupancy (CO). 7. Street gutters and catch basins are considered "surface waters" and shall be protected from exposed soils with a positive slope within 200 linear feet within 24 hours of connection. 8. Details for concrete washout areas where drivers will wash out their trucks and how the water will be treated should be developed and included in the SWPPP. 9. Street cleaning of soil tracked onto public streets shall include daily street scraping and street sweeping as needed. 10. The total SWMP fee, due payable to the City at the time of final plat recording, is $20,790.00. 11. The owner /operator of the proposed development shall apply for and obtain permits from the appropriate regulatory agencies (e.g., Riley- Purgatory -Bluff Creek Watershed District, Minnesota Pollution Control Agency (NPDES Phase II Construction Site Permit), Minnesota Department of Natural Resources (for dewatering), Minnesota Department of Transportation, Minnesota Department of Health) and comply with their conditions of approval.. 12. Tree protection fencing shall be installed prior to construction around all areas designated for preservation and/or at the edge of proposed grading limits. Todd Gerhardt Lakeside Sixth Addition Final Plat March 26, 2012 Page 13 13. A walk - through inspection of the silt/tree preservation fence shall be required prior to construction. 14. No burning permits shall be issued for tree removal. All trees removed on site shall be chipped and used on site or hauled off. 15. No trees shall be removed behind the northwestern corner of the silt fence as shown on grading plans dated 05/19/06.. 16. A total of 139 trees shall be planted in the development as required for canopy coverage. 17. Building permits are required for all retaining walls four feet tall or higher and must be designed by a Structural Engineer registered in the State of Minnesota. 18. All sanitary sewer, watermain and storm sewer within this site shall be privately owned and maintained. 19. A portion of the sanitary sewer and water hookup charges must be paid with the final plat: $632.00 for sanitary sewer hookup and $1,715.00 for watermain hookup. The remaining $1,475.00 sanitary sewer and $4,002.00 watermain hookup fees must be paid with the building permit and can be specially assessed against the parcel at the time of building permit issuance. All of these charges are based on the number of SAC units assigned by the Met Council and are due at the time of building permit issuance 20. The developer shall pay $38,000.00 park dedication fees for the Sixth Addition of the development prior to final plat recording in lieu of parkland dedication. ATTACHMENTS 1. Final plat. g: \plan\2006 planning cases \06 -26 Iakeside\sixth addition\staffreport final plat.doc ' ,_-...• !....: ,.,.; P - -, I 2 g 0 II a P• d ci (., () - - 1 1 N - ", -.. •"•' k• 2 1...1 • I I - , ;:•p . -.,, = ,...S'ilP X !. LT 0 1 , I 0 I — ..,,, ;,,-:. • - . - 5 5 - 7- -, , ..: ■--4 i < •:. d LII.:-: •-, ?PrIII :E;:,if.:• —I • 0 • .Zer 98-801 •Kro, :_ — — _3,St ,87. 68N • OM 3.60.1975 ...-. ! Tr A.' coya 3.6C.K.faS , '.> • • ' , 8 ,..,• . IT: g s 4-' R 1••• .. a...59.9.195 P . • § re) .... Z ‘1 5 ... 0 a_ I— 8 • OWN 3.0C.6,1165 • — r.i. 0 0 ! ,._ .) .— ' ' I < .1...- = , c0 ■Y 3.n.ecams • .,-- : X 1 It-g qP ;,,lci. : _ (.1) - n •,, W'F.,' a CV 01FL1 3.98,9468S . 4 . _ _. „________. LLJ a r) 0 c.90 'Tr 0 g 2 • (r) a 0 •0 g 0 . LLI .„,,,., 8 ., a . .9 . ? Y 0 81 1 8 , < ,,) . 00 ..of.9,09.■ • .4 —I \ ' e c g b b a 1 0,A. r -- .— V Cfr - --\ -...- 8 1 Ei ... 4° 6•Al lt o ` 8 , .8 -. 4' # t g • . ,-, .0'99 m.ors¢ser., , 2 0 AP , g D a 3 b 0 :, - , AWYef-) , - ... ,e•84 0/„f ! – ....,, 0 , , • 0 ..ti ..... __._ 9.12._ cove *49,94m ..4 9 3 . / , . -- ........ Z..._ • • , 1... -- ....ViC 4 S / I ---- --'Cri-e. / , / n„ P z / • „ ,./ / F, / <„.s.0, ...- 1 / , , / . . . ...._......._ . / ./ ./ .. ./ ../ ...- „ , \ ....„ . , . ..., . .:.; .., 1 1 1 1