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PZC Packet 120710Staff Report - Final Design Plan December 7, 2010 Planning & Zoning Commission meeting Report December 3, 2010 Legal Description Lot 8, Western Sage PUD and Subdivision Zoning Planned Unit Development (PUD) – 1 Unit Address 5767 Wildridge Road East Prepared By Jared Barnes, Planner I-::9-6 Summary of Request Jeff Manley, Martin Manley Architect, (the Applicant) representing Les Boris (the Owner) of Lot 8, of the Western Sage Subdivision (the Property), has submitted a Final Design application for a single-family structure with access off of Wildridge Road East (the Application). The proposed three (3) story structure is approximately 7,500 gross square feet of floor area, with an attached three (3) car garage. Staff is recommending approval of the Final Design application. Process At its October 5`h, 2010 meeting, the Commission reviewed a Sketch Design for the Application. The Commission made the following comments concerning the proposed design: • The Town staff should provide more flexibility for driveway designs to reduce the overall height of the proposed retaining walls; • Provide more landscaping to screen the retaining walls and three story elevations; and • Provide material samples to ensure similarity between the MSE and boulder retaining walls. The Application was submitted under the requirements of the previous zoning code, and is permitted to continue processing pursuant to those regulations. The Western Sage PUD was approved with its own design guidelines for Lots 1-5. Lot 8 is not encumbered by those guidelines and therefore has been reviewed pursuant to the Town of Avon Residential, Commercial and Industrial Desiqn Guidelines. Property Description The Property is legal described as Lot 8, Western Sage Subdivision, is 1.2 acres in size, or 52,315 sq ft, and is zoned for a single-family residence. The Property contains areas, primarily located adjacent to the road, with steep slopes of fifty percent (50%) and greater. There is an existing benched access road approximately ten (10) feet wide that may have been part of an old ranch road. Below the benched area grades exceed forty percent (40%) for the duration of the building envelope. The Property slopes downhill to the southwest and does contain a platted non -developable area approximately one hundred and forty (140) feet from the front property line that extends to the rear property line. The Property is surrounded by properties zoned for duplexes, many of which are developed with single family and duplex homes. All of the Western Sage PUD and Subdivision lots are zoned solely for single-family homes many of which have already been constructed upon. Policy Analysis The application does not negatively affect the planning principals for District 24: Wildridge Residential District as outlined in the Comprehensive Plan. Planning Analysis The Application does comply with all zoning requirements. The proposed building height is thirty-four feet and nine inches (34'-9"), while the site coverage is eight and four -tenths percent (8.4%). An Improvement Location Certificate (ILC) will be required to verify the height during construction. The Application includes two (2) parking spaces and a twenty percent (20%) snow storage area on the site plan. The landscaping also complies with the zoning requirements by proposing eighty-eight percent (88%) of the entire lot landscaped and only ten percent (10%) of the landscaped area irrigated. This irrigation is temporary drip irrigation that will be removed once the landscaping is established. The appearance of the proposed structure on the steep slope has been minimized by stepping the building down to one (1) story on the front fagade, two (2) stories on the south and southeast faces, and three (3) stories on the southwest face. The Application also complies with the four -to -twelve (4:12) roof slope minimum by proposing mainly six -to -twelve (6:12) roof slopes. The proposed exterior light fixtures are full cut off and comply with the Outdoor Lighting Ordinance. The Application proposes seven (7) separate retaining walls. Six (6) of the retaining walls will be constructed from boulders with a maximum height of six (6) feet, while the seventh wall will be constructed using MSE blocks. The applicant does not have the specific colors for the boulders therefore cannot match them to a MSE block color. Staff recommends that the applicant provide the PZC with examples of the boulders and MSE blocks prior to building permit. The engineering department has made comments regarding the proposed retaining walls that are outlined below. Engineering Analysis The Engineering Department has made five (5) comments on the application. They are as follows: • Structural plans and calculations for the MSE and Boulder walls that support the driveway must be provided before a building permit will be issued. The plans and calculations must be stamped by a structural engineer registered in the State of Colorado. • Installation of retaining wall structural elements (e.g. geogrid, underdrains) should be inspected by TOA engineering staff prior to backfilling periodically throughout construction to verify conformance with approved plans. • The grading of the site access shall be inspected by TOA engineering staff prior to paving to ensure compliance with the approved layout. • Erosion control facilities are subject to inspection and erosion control blanket shall be installed on all disturbed slopes 3:1 or greater. • Prior to TCO, a stamped letter shall be submitted to TOA by the project geotechnical and structural engineers certifying that the retaining walls were constructed in conformance with the approved plans. Each of the engineering issues require compliance prior to building permit, during the building permit, or prior to a TCO or CO inspection. Staff recommends that the PZC apply these conditions as conditions of approval. Design Review The Application proposes to use stone, vertical and horizontal wood siding and stucco as the primary exterior building materials. The elevations also include stone caps, wood trim, and the use of asphalt shingles as the roofing material. The materials will be finished with the following colors, as seen on Exhibit B: Stucco — "STO Amarlla" (#3003); horizontal wood siding — "Porter Dark Oak" (#925); Vertical wood siding — "Porter Ginger" (#935); wood trim — "Porter Black Oak" (#712) and Oklahoma Brown Straightedge for the stone. The landsnaninn material-, and ni iantitie-, era ae fnllrmeicr Three (3) En leman Spruce trees Ten feet (10') in height Six 6 Ponderosa Pine trees Eight feet 8' in height Two 2 Rocky Mountain Maple trees Three (3) inch calipers Eighteen 18 Quaking Aspen trees Three 3 inch calipers Mix of sixteen (16) evergreen and forty-four (44) deciduous shrubs Mostly five (5) gallon size As seen on the plans, Sheet 1-1.1, a majority of the landscape material is located north and northeast of the structure. The applicant has proposed a significant number of plantings in this area to help screen the retaining walls to the north of the structure. The applicant has also stated that the ten (10) sagebrush and five (5) rabbitbrush shrubs will be randomly placed throughout the disturbed area to help feather the removal of sagebrush from the disturbed areas. Recommendation Staff recommends APPROVAL of this Final Design application for Lot 8, Western Sage PUD and Subdivision, subject to the criteria and corresponding findings listed in this report, and with the conditions listed in the recommended motion below. Recommended Motion "I move to approve this Final Design application for construction on Lot 8, Western Sage PUD and Subdivision, with the following conditions: 1. Samples of the boulder retaining walls and MSE walls are provided to the PZC for approval prior to issuance of a Building Permit. 2. All retaining walls outside of the property lines must be approved by a ROW permit prior to construction. 3. Structural plans and calculations for the MSE and Boulder walls that support the driveway must be provided before a building permit will be issued. The plans and calculations must be stamped by a structural engineer registered in the State of Colorado. 4. Installation of retaining wall structural elements (e.g. geogrid, underdrains) should be inspected by TOA engineering staff prior to backfilling periodically throughout construction to verify conformance with approved plans. 5. The grading of the site access shall be inspected by TOA engineering staff prior to paving to ensure compliance with the approved layout. 6. Erosion control facilities are subject to inspection and erosion control blanket shall be installed on all disturbed slopes 3:1 or greater. 7. Prior to TCO, a stamped letter shall be submitted to TOA by the project geotechnical and structural engineers certifying that the retaining walls were constructed in conformance with the approved plans. and subject to the FINDING that the design is in conformance with the Town of Avon Comprehensive Plan, Title 17 (AMC) and the Town of Avon Design Review Guidelines." Exhibits A: Vicinity Map B: Color and Material Board C: Light Fixture Cut Sheet D: Engineering Comments dated November 30, 2010 E: Reduced Plan Sets Vicinity Map - Lot 8, Western Sage PUD Exhibit 3 cy.. eResidential Streets Property Boundaries 675 175 11 ,YO,N Kichler 49059 Contemporary / Modern Single Light Small Outdoor Wall Sconce from tti Exhibit C (800) 375-3410 can Center Hours Nome My Account contact us Hein Cad -O items LightingDirect.com What are you shopping for? Home Ceiling Lights Wali Lights Lamps Outdoor Lights Fans Articles Sale! Brands Bathroom Chandeliers Pendants Wali Lights Ceiling Lights Ceiling Fans Lamps Outdoor Free Ground Shipping when you spend �4c)! 1 10", Match Guardmeel No Restocking Fees on Returns! Builder Pricing Avaifpblel— You are:dam e>"no s>Kichler>outdoor Uahtlno> Outdoor Sconces >IKichler 49059 Print Page Bookmark Kichler 49059 Contemporary / Modern Single Light Small Outdoor Wall Sconce from the Ripley Collection View the entire Ri le '_ _ KICHLER PW LIGHTING �\ Zoom 360 Audio Image Yew Details Product Details for the Kichler 49059 $59.00 - $62.00 Shipping: Free Shippingl See Detelis This item ships in 24 to 48 hours. Ships In: View Finishes Finish; Olde Bronze - In Stock -$62.00 30 In Stock Fi— Qty Be the first to review this Droduct Return Policy 110% Low Price Guarantee Single Light Small Outdoor Wall Sconce from the Ripley Collection • Single light down lighting outdoor wall sconce • Requires 1 60w Medium base bulb (not Included) • Backplate: 5.125" diameter Additional Kichler Links View Manufacturer Warranty Shoo All Kichler ProduCtS Shop All Kichler Ripley Collection Products Our SKU: 49059 This product is also listed under other manufacturer numbers 49059NI 49059OZ *Discontinued 11/18/2010 Technical Specs Bulb Base Bulb Type Canopy_Dimenslons Collection Dark S_ky Depth Extension ..................... Height Light Direction Material ........... Number of Bulbs Suggested Room Fit Theme UL Listed Watts Watts Per Bulb Width 4.4' Shipstg T Carmua Live Chat Price Alerts Send to a Friend Ask A Question Medium Incandescent 5.125 Ripley Yes 9 9 7.37 Down Light ng Aluminum 1 Outdoor Contemporary / Modern , Craftsman / Mission Wet Locations 40 40 a Exhibit D To: From Date: Re: MEMORANDUM Matt Gennett Shane Pegram November 30, 2010 Lot 8 Western Sage Final Design Submittal Review COMMENTS: The following comments are in response to my review of the above referenced Final Design Submittal 1. Structural plans and calculations for the MSE and Boulder walls that support the driveway must be provided before a building permit will be issued. The plans and calculations must be stamped by a structural engineer registered in the State of Colorado. 2. Installation of retaining wall structural elements (e.g. geogrid, underdrains) should be inspected by TOA engineering staff prior to backfilling periodically throughout construction to verify conformance with approved plans. 3. The grading of the site access shall be inspected by TOA engineering staff prior to paving to ensure compliance with the approved layout. 4. Erosion control facilities are subject to inspection and erosion control blanket shall be installed on all disturbed slopes 3:1 or greater. 5. Prior to TCO, a stamped letter shall be submitted to TOA by the project geotechnical and structural engineers certifying that the retaining walls were constructed in conformance with the approved plans. If you have any questions regarding these comments, please contact me at 748-4114.