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1d2 Springfield 7th PUD AgreemtCITYOF CH SEI Cig Center Drive, PO Box 147 3anhassen, Minnesota 55317 Phone 612.937.1900 'Jeneral Fax 612.937.5739 gineering lax 612.937.9152 51ic Safay Fax 612.934.2524 feb www. ci. chanhassen, mn. tls MEMORANDUM TO: FROM: DATE: SUB J: Scott Botcher, City Manager Bob Generous, Senior Planner David Hempel, Assistant City Engineer August 23, 1999 Springfield 7th Addition, Final Plat Approval, 93-6 PUD PROPOSAL SUMMARY The applicant is requesting final plat approval creating 16 lots for Springfield 7th Addition. The proposed lots comply with the requirements of the PUD'. Staff is recommending approval of the final plat for the 7th Addition subject to the conditions of the staff report. BACKGROUND On March 22, 1999, the City Council approved PUD//93-6 granting Final Plat approval for Springfield 6th Addition creating 3 lots. On January 25, 1999, the City Council approved PUD #93-6 granting final plat approval for Springfield 5th Addition creating 38 lots, four outlots and associated right-of-way. On August 24, 1998, the City Council approved the final plat for Springfield 4th Addition. On March 23, 1998, the City Council approved the final plat for Springfield 3rd Addition creating 19 lots, one outlot and associated right-of-way. On March 9, 1998, the City Council approved the final plat for Springfield 2nd.Addition (PUD #95-1) creating 23 lots and ten outlots. On May 12, 1997, the City Council approved the final plat for Springfield Addition creating 26 lots and five outlots, the final reading for the rezoning of the property from A2 to PUD-R. and the PUD agreement and development contract for the project. Cio' of Chanhassen. A growing community with ckan lakes, quality schools, a charming downtown, thriving businesses, and beautiful parks. A great place to live, work, and play. Springfield 7th Addition Final Plat August 23, 1999 Page 2 On May 20, 1996, the City Council approved a one year extension until June 1, 1997 for preliminary plat (93-6 PUD) to subdivide 80.8 acres into 135 single-family. On May 22, 1995, the City Council granted a one year time extension for the preliminary plat for the Rogers/Dolejsi property (#93-6 PUD) until June 1, 1996. On January 9, 1995, the City Council approved a six month time extension for the preliminary plat for the Rogers/Dolejsi property (#93-6 PUD). On December 13, 1993, the City Council approved the preliminary plat for the Rogers/Dolejsi property (#93-6 PUD) for 135 lots on 80.8 acres located south of Lyman Boulevard and east of Highway 101. FINAL PLAT PROPOSAL SUMMARY At this time, the applicant is requesting final plat approval to create 16 lots and associated right- of-way for Springfield 7th Addition. This phase represents the final phase of the development. PARKS & RECREATION The applicant dedicated portions of approximately 5.3 acres to the city for park land. This land is for Bandimere Heights Community Park. Of this land, the city acquired approximately 2.7 acres at a price of $24,600 per acre (the "purchase price"). Prior to final plat approval for any future phase, the developer is required to repay to the city a pro rata portion of the purchase price plus accrued interest from the date, April 10, 1998, the city purchased the approximately 2.7 acres to the date of repayment by the developer plus interest at a rate of 8 percent per annum. The pro rata portion of the purchase price shall be based on the proportion of the number of lots that are included in the phase to the total number of lots remaining on the preliminary plat after platting Springfield 1 st _ 3rd Additions. The pro rata share for Springfield 7th Addition is twenty-four (24) percent of the purchase price plus accrued interest. LANDSCAPING The applicant has prepared a master landscape plan for the project. This plan has incorporated tree preservation requirements as well as buffer yard requirements. The plan for the 7th Addition contains a total of 30 overstory deciduous trees, 16 ornamentals, and 7 conifers. The city shall require security as part of the final plat for the installation of the buffer yard plantings along Lyman Boulevard and the rear yard plantings in the amount of $10,000.00. STORMWATER MANAGEMENT The proposed single family residential development of 6.2 developable acres is responsible for a. water quality connection charge of $4,956.48 and a water quantity fee of $12,267.29. The water Springfield 7th Addition Final Plat August 23, 1999 Page 3 quality fee has been waived since the applicant is meeting NURP design for on site runoff. The water quantity fees of $12,267.29 are payable to the city prior to the city filing the final plat. GRADING The site has already been graded with the previous phases of Springfield Addition. There are earth berms and landscaping located along Lyman Boulevard to provide screening per the PUD. The homeowners association will maintain the berm/landscaping. In conjunction with the utility installation, minor grading will occur to restore the site to original grade. UTILITIES Municipal utility service has been extended to the site from the previous phases. The plans propose on extending utilities through the site. This phase will also eventually service the existing homestead/parcel to the east (Prewitts). Staff has received detailed construction plans and specifications for both utility and street improvements. Upon review of the plans and specifications, staff finds them to be in general conformance with City standards. The construction plans and specifications and development contract approval also are being considered for approval with the final plat. Copies of the construction plans are available for review in the Engineering Department. DRAINAGE Stormwater runoff generated from the site will be conveyed via storm sewer and draintile systems to existing stormwater quality ponds in the Springfield development for pretreatment prior to discharging into Lake Riley. A drain tile system is proposed to address sump pump discharge from the proposed dwellings. In addition, the drain tile will address subsurface drainage in the street to help improve the life of the street. STREETS Detailed street construction plans and specifications have been submitted for staff review and City Council approval. Staff finds the construction plans in general conformance with City standards. Currently, Summerfield Drive terminates in a temporary cul-de-sac just west of Greenview Drive. The temporary cul-de-sac will be removed and Summerfield Drive extended. Summerfield Drive will again end in a temporary cul-de-sac end east of Greenview Drive. Eventually this street will be extended through the parcel to the east and will connect Summerfield Drive to Springfield Drive in the 1 st phase. A condition will be Placed in the Development Contract/PUD Agreement indicating that Summerfield Drive will be extended in the future. Staff believes the temporary cul-de-sac diameter/configuration should be expanded in size to accommodate emergency vehicles, garbage trucks, delivery vehicles, etc. A temporary Springfield 7th Addition Final Plat August 23, 1999 Page 4 easement will be required over Lot 8, Block 1, to achieve this. The temporary easement will expire upon the street extension through the Prewitts parcel. A 5-foot wide concrete sidewalk will be extended along the south side of Summerfield Drive consistent with the previous phases. Decorative residential street lights (3) will be installed as well. COMPLIANCE TABLE AREA (SQ. FT.) FRONTAGE (FT.) DEPTH (FT.) CODE 15,000 avg., 11,000 min. 90 100 Lot 1, Block 1 11,185 98 122 Lot 2, Block 1 11,009 97 116 Lot 3, Block 1 11,290 81' 119 Lot 4, Block 1 15,447 81' 155 Lot 5, Block I 17,464 84* 172 Lot 6, Block 1 21,240 82* 202 Lot 8, Block 1 20,065 157 164 Lot 1, Block 2 17,846 104 128 Lot 2, Block 2 11,082 93 134 Lot 3, Block 2 11,047 97 137 Lot 4, Block 2 11,204 99 141 Lot 5, Block 2 11,366 133 137 Lot 6, Block 2 11,550 93 130 Lot 7, Block 2 11,245 87* 114 Lot 8, Block 2 13,989 87 154 Right-of-Way 45,786 Total 269,880 * Meets minimum width at building setback line. Minimum setbacks: PUD perimeter: thirty (30) feet Front yard: thirty (30) feet Rear yard: thirty (30) feet Side yard: ten (10) feet Lyman Blvd./TH 101: fifty (50) feet It should also be noted that the maximum lot coverage in this district is 25 percent. Lot coverage includes all impervious surfaces including buildings, driveways, walkways, stoops and porches, or other impervious coverage. Springfield 7~h Addition Final Plat August 23, 1999 Page 5 REVIEW OF CONDITIONS OF APPROVAL Staff has reviewed the conditions of approval and made a determination of the compliance with the conditions. Submittal of street names to the Public Safety Department, Inspections Division for review and approval prior to final plat approval. * This condition has been met. Revise grading and erosion control plan to indicate lowest floor level elevation and garage floor elevation before final plat approval. * This condition has been met. 3. Tree preservation/landscaping: ao Detailed plans for perimeter berming and landscaping. A landscaped buffer shall be provided along State Highway 101 and Lyman Boulevard. This buffer shall be sufficient to screen direct views of the home site from the roadway. Additional landscaping shall be provided along Lake Riley Boulevard to provide a natural transition frOm Lake Riley Boulevard into the development. * This condition has been met. A master landscape plan has been prepared by Kevin Norby & Associates, Inc. date stamped received April 4, 1997. bo Tree planting to meet minimum size standards in City Code and to be selected from the official tree list. * This condition has been met. Co Landscaping to be covered by satisfactory financial guarantees to assure installation and survival. * This condition shall be modified as follows: The applicant shall provide security as part of the final plat for the installation of the buffer yard plantings along Lyman Boulevard and the rear yard plantings in the amount of $10,000.00 d. Existing trees listed in the tree survey to be preserved as part of the development. * This condition has been met. Springfield 7th Addition Final Plat August 23, 1999 Page 6 eo Development of an approved landscape budget prior to city approval of the final plat. * This condition has been met. The development must perform the appropriate calculations and comply with the requirements of the tree preservation ordinance (section 18-61). * This condition has been met. 4. The applicant shall dedicate 5.3 acres of park land to the city in lieu of park fees. *This condition shall be modified as follows: In lieu of park dedication requirements, the developer is required to repay to the city a pro rata portion of the purchase price plus accrued interest from the date the city purchased the approximately 2.7 acres, April 10, 1998, to the date of repayment by the developer at a rate of 8 percent per annum. The pro rata share for Springfield 7th Addition is twenty-four (24) percent of the purchase price plus accrued interest which equals $16,313.60 in principal plus interest at $3.57 per day from 4/30/99 to the date of payment of the administrative fees. o A trail easement to be dedicated in the southeast quadrant of the site to provide pedestrian and bicycle access to Lake Riley Boulevard. The trail segment shall be built by the developer as part of the phase of development including the abutting property. Partial trail fees will be required as part of the development. * This condition shall be modified as follows: The developer shall pay full trail fees pursuant to city ordinance. o Demonstrate that each lot can accommodate at least a 60' x 40' home site and a 12' x 12' deck and maintain all setbacks on the final plat. * This condition has been met. o A minimum fifty (50) foot building setback shall be maintained from Lyman Boulevard and State Highway 101. * This condition shall be modified as follows: The following building setbacks shall apply: PUD perimeter: thirty (30) feet; Front yard: thirty (30) feet; Rear yard: thirty (30) feet; Side yard: ten (10) feet; and Lyman Blvd.: fifty (50) feet. Springfield 7th Addition Final Plat August 23, 1999 Page 7 o o 10. 11. Appropriate drainage and utility easements shall be conveyed with the final plat for all utilities located outside the public right-of-way. The minimum width shall be twenty (20) feet. * This condition has been met. 12. No lots shall have driveway access to State Highway 101, Lyman Boulevard, or Lake Riley Boulevard. * This condition shall be modified as follows No lots shall have direct driveway access to Lyman Boulevard. 13. The developer shall construct all utility and street improvements in accordance with the city's latest edition of Standard Specifications and Detail Plates and prepare final construction plans and specifications for city staff review and formal City Council approval in conjunction with final plat approval. * This condition has been met. Construction plans for the public improvements have been submitted for approval. A financial security will be required as a condition of approval with the development contract to guarantee installation of the necessary improvements. As a condition of final plat approval, the applicant shall be required to enter into a PUD agreement and development contract with the city and provide the necessary financial security to guarantee compliance with the conditions of approval of final platting. *This condition still applies. The City of Chanhassen Wetland Ordinance should be employed to require a buffer strip and setback for the homes adjacent to the wetland in the northeast comer of the site, specifically Lots 6, 7 and 8, Block 5. * This condition does not apply to this phase. The grading plan should be revised to include existing ground contours. Street grades throughout the subdivision shall fall within the city's standard of 0.50% to 7.0% percent grades. * This condition has been met. Springfield 7th Addition Final Plat August 23, 1999 Page 8 14. Storm sewers shall be designed and constructed to facilitate a 1 O-year storm event. The ponding basins are required to meet NURP water quality standards and maintain the surface water discharge rate from the subdivision at the predeveloped runoff rate for a 100-year, 24-hour storm event. Detailed storm sewer and ponding calculations for the entire development will be required in conjunction with final platting of Phase I. * This condition has been met. 15. The drainage basins along Lyman Boulevard shall be sized to accommodate the storm runoff for the future upgrade of Lyman Boulevard. The city may contribute towards the cost of any pond oversizing as a result of additional runoff generated from Lyman Boulevard. The city will credit the applicant by means of an assessment or SWMP fees reduction. * This condition has been met. 16. Storm sewer and ponding basins shall be designed in accordance to the City's Surface Water Management Plan. The applicant shall work with staff in relocating or adjusting the proposed NURP basins adjacent to Lyman Boulevard to be compatible with the future upgrade of Lyman Boulevard. The proposed development will also be subject to the appropriate water quality and quantity connection fees. * The condition shall be modified as follows: The proposed single family residential development of 6.2 developable acres is responsible for a water quantity fee of $12,267.29. The water quality fee has been waived since the applicant is meeting NURP design for on site runoff. The water quantity fees of $12,267.29 are payable to the city prior to the city filing the final plat. 17. The applicant shall dedicate on the final plat additional road right-of-way along Lake Riley Boulevard to achieve a 60-foot wide right-of-way. The street right-of-way throughout the subdivision shall be 50 feet wide if the City Engineer approves as adequate. * This condition has been met. 18. During the construction of each phase, temporary tumarounds shall be provided on all dead end streets which are proposed to be extended. Barricades shall be placed at the end of the temporary turnarounds with a sign indicating that "this street shall be extended in the future." * This condition still applies. Springfield 7th Addition Final Plat August 23, 1999 Page 9 19. The applicant/property owner of Outlot F shall enter into a driveway easement with the adjoining three property owners for the use of the existing driveway through Outlot F if one currently does not exist or eliminate the issue by relocating the driveway off of the property. * This condition does not apply to this phase. 20. Preliminary and final plat approval shall be conditioned upon the Chanhassen City Council authorizing a public improvement project for the extension of trunk utility service to the area and the upgrade of Lyman Boulevard to urban standards. * This condition has been met. 21. Fire hydrants shall be spaced in accordance to the City's fire marshal recommendations. * This condition has been met. 22. The applicant shall provide a 6-inch watermain stub to Lake Riley Boulevard between Lots 15 and 16, Block 5 shall be provided. * This condition has been met. 23. The existing home on Outlot F shall be required to connect to city sewer and water service within 12 months from the date the system becomes available or sooner if the well and septic system fails. * This condition has been met. 24. The applicant shall receive and comply with all pertinent agency permits, i.e. Watershed District, Health Department, MPCA, Williams Brothers Pipeline Company, MWCC. * This condition shall be modified as follows: The applicant shall receive and comply with all pertinent agency permits, i.e. Watershed District, Health Department, MPCA, MCES, etc. 25. All disturbed areas during site grading shall be immediately restored with seed and disc mulch or wood fiber blanket within two weeks after site grading or before November 15 each construction season accept in areas where utilities and street will be constructed yet that year. All disturbed areas resulting from construction activities shall be restored in Springfield 7th Addition Final Plat August 23, 1999 Page 10 accordance to the City's Best Management Practice Handbook for erosion and sediment control. * This condition still applies. 26. As a condition of final plat approval, the applicant will be required to enter into a development contract with the city and provide the necessary financial security to guarantee compliance with the conditions of approval and final platting. * This condition is a duplicate and can be deleted. 27. The applicant shall be responsible for their fair share of the assessments for the extension of trunk utility improvements and the upgrade of Lyman Boulevard to urban standards. * This condition has been met. 28. Outlot F shall be platted as a lot within the subdivision since outlots cannot be built upon. Relocate the driveway for this lot so that it connects perpendicularly to the proposed street within the subdivision at a location acceptable to the Engineering Department. * This condition does not apply to this phase. 29. Back-to-back cul-de-sacs shall be provided at the Kiowa Trail connection. The pavement for the northern cul-de-sac shall be installed to the project property line. A breakaway barricade shall be installed to prohibit through traffic on Kiowa Trail. The cul-de-sac shall be temporary until either area residents petition the city to open the connection or Highway 212 is constructed at which time traffic patterns will be changed. * This condition does not apply to this phase. 30. A declaration that the fields in Bandimere Community park will be lighted shall be included in the chain of title for lots within the subdivision. * This condition still applies. 31. Sidewalks or pedestrian trails shall be provided connecting Lake Riley Boulevard and Lyman Boulevard to Bandimere Park. This trail system shall include a trail segment built within the 92nd Street right-of-way from Kiowa Trail to Bandimere Park. * This condition has been met. Springfield 7thAddition Final Plat August23,1999 Page 11 32. The city reserves the right to reevaluate the subdivision and require changes to the plat based on the city's approval of any ordinances that may be adopted during the preliminary plat time extension. * This condition no longer applies. The only ordinance that has been amended since the original approval of the plat is the tree preservation ordinance which was incorporated in the landscaping plan. 33. The applicant shall be responsible for acquiring the necessary right-of-entry required to complete the Lyman Boulevard upgrade until such time as the necessary right-of-way is platted with the development of the site. * This condition has been met. After review of the proposed plat for Springfield 7th Addition, staff recommends that the following condition be added: The developer shall dedicate to the City a temporary turnaround easement over Lot 8, Block 1, Springfield 7th Addition. The developer shall work with staff in the design of the turnaround to accommodate emergency vehicles. RECOMMENDATION Staff recommends that the City Council adopt the following motion: "The City Council approves PUD #93-6 granting Final Plat approval for Springfield 7th Addition creating 16 lots, two outlots, and right-of-way for Summerfield Drive as shown on the plans prepared by Pioneer Engineering, date stamped received August 18, 1999, subject to the following conditions: The applicant shall provide security as part of the final plat for the installation of the buffer yard plantings along Lyman Boulevard and the rear yard plantings in the amount of $10,000.00. In lieu of park dedication requirements, the developer is required to repay to the city a pro rata portion of the purchase price plus accrued interest from the date the city purchased the approximately 2.7 acres, April 10, 1998, to the date of repayment by the developer at a rate of 8 percent per annum. The pro rata share for Springfield 7th Addition is twenty-four (24) percent of the purchase price plus accrued interest which equals $16,313.60 in principal plus interest at $3.57 per day from 4/30/99 to the date of payment of the administrative fees. 3. The developer shall pay full trail fees pursuant to city ordinance. Springfield 7th Addition Final Plat August 23, 1999 Page 12 The following building setbacks shall apply: PUD perimeter: thirty (30) feet; Front yard: thirty (30) feet; Rear yard: thirty (30) feet; Side yard: ten (10) feet; and Lyman Blvd.: fifty (50) feet. 5. No lots shall have direct driveway access to Lyman Boulevard. o As a condition of final plat approval, the applicant shall be required to enter into a PUD agreement and development contract with the city and provide the necessary financial security to guarantee compliance with the conditions of approval of final platting. o The proposed single family residential development of 6.2 developable acres is responsible for a water quantity fee of $12,267.29. The water quantity fees of $12,267.29 are payable to the city prior to the city filing the final plat. During the construction of each phase, temporary tumarounds shall be provided on all dead end streets which are proposed to be extended. Barricades shall be placed at the end of the temporary turnarounds with a sign indicating that "this street shall be extended in the future." 9. The applicant shall receive and comply with all pertinent agency permits, i.e. Watershed District, Health Department, MPCA, MCES, etc. 10. All diSturbed areas during site grading shall be immediately restored with seed and disc mulch or wood fiber blanket within two weeks after site grading or before November 15 each construction season accept in areas where utilities and street will be constructed yet that year. All disturbed areas resulting from construction activities shall be restored in accordance to the City's Best Management Practice Handbook for erosion and sediment control. 11. A declaration that the fields in Bandimere Community park will be lighted shall be included in the chain of title for lots within the subdivision. 12. The developer shall dedicate to the City a temporary turnaround easement over Lot 8, Block 1, Springfield 7th Addition. The developer shall work with staff in the design of the turnaround to accommodate emergency vehicles. The temporary easement will expire upon the street extension through the Prewitts parcel (PID #25-0241100)." ATTACHMENTS 1. Location map. 2. Preliminary plat. 3. Final plat date stamped received August 18, 1999. g:\plan\bg\springfield 7th addition.doc LOCATION Rice Heartland Crt M~SS~O~ WAY .~LL E RICE C~ MONK CRT ~5~vd / Lake - Meadok,x I t