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L52 B4 WR Duplex DesignTown of Avon Final Design Staff Report May 5, 1998 Planning & Zoning Commission meeting Report date Project type Legal description Zoning Address Introduction May 1, 1998 McKenny Duplex Lot 52, Block 4, Wildridge Subdivision PUD -Duplex 5183 Longsun Lane Lot 52 is currently developed with a single family home and is zoned for duplex use. The original final design was approved for two units, but the second unit was never built. According to the Planning Procedures, the original design approval has expired. The owners are now proposing to build the second unit in conformance with the original plan. The second unit is designed to complement the architecture of the first unit and will match existing materials and colors. The driveway access plan was originally approved with two driveways. The amended Design Guidelines, however, now state that the Planning and Zoning Commission must specifically approve second driveways. Design Review Considerations According to the Commission's Procedures, Rules & Regulations, Section 6. 10, the Commission shall consider the following items in reviewing the design of this project. Please note that a statement is provided for Criteria 2-7 only where there is an issue of concern that needs discussion. 1. Conformance with setbacks, massing, access, land use, and other provisions of the Zoning Code. • Allowed use: Conforms with the allowed residential use. • Density: Duplex use conforms to this lot's 2 dwelling unit designation. • Lot Coverage: Conforms with the 50% maximum. • Setbacks: No proposed encroachments. • Easements: No proposed encroachments and proposed grading in the 10' Slope Maintenance and Snow Storage Easement is acceptable. • Building Height: The height of 35 feet on the west side of the new unit is at the 35' maximum limit assuming the underlying elevation is no less than 8133 below the ridgeline. The tower is at the maximum 35 -foot height assuming the underlying elevation is 8136.4 or higher. Care will need to be taken during construction to ensure that the building does not exceed the maximum height. Town of Avon Community Development j:\p&z\staff reports\1998\050598\52b4wr.doc (970) 949-4280 Fax (970) 949-5749 Lot 52, Block 4, Wildridge Subdivision, Final Design Review, page 2 May 5, 1998 Planning & Zoning Commission meeting • Grading: All proposed grades conform with the maximum of 2:1 slope guideline. The driveway grades are eight percent at the top of the driveway, to a ten- percent slope in the middle and 5 percent in front of the garage. Given the existing building and the fact the property is on a low volume cu -de -sac, staff supports approval of the driveway as proposed. Section 7.1 of the Procedures allows P and Z to grant exceptions where there are demonstrated practical difficulties or particular hardships preventing the strict provisions of the regulations to be met. The area between the two garages needs a slight revision to achieve positive drainage away from the garage. • Parking: The four garage and the four surface parking spaces conform to the required eight spaces. • Access: The Procedures (Design Guidelines) state that additional points of access must be specifically approved by the P and Z with the finding that the additional access point is required for the project to otherwise conform to the Design Standards and other applicable Town regulations. Staff recommends the second driveway be approved on the lot. It would not be practical to meet turning radius requirements for the driveway utilizing the existing access. It would also be difficult to meet landscaping requirements with the driveway located immediately in front of the units. • Snow Storage: Submitted plans show snow storage area equal to the minimum standard of 20% of the proposed impermeable surface area. • Landscaping: Submitted landscape plan appears suitable. 2. The conformance with other applicable rules and regulations of the Town of Avon. 3. The type and quality of materials of which the structure is to be constructed. 4. The design of site grading and drainage to minimize impacts to adjacent sites, rights-of-way and easements. 5. The compatibility of the proposed improvements with site topography to minimize site disturbance, orient with slope, step building with slope, and minimize benching or other significant alteration of existing topography. 6. The appearance of proposed improvements as viewed from adjacent and neighboring properties and public ways, with respect to architectural style, massing, height, orientation to street, quality of materials, and colors. 7. The objective that no improvement be so similar or dissimilar to others in the vicinity that monetary or aesthetic values will be impaired. 8. The general conformance of the proposed improvements with the adopted Goals, Policies and Programs for the Town of Avon. Staff Recommendation Approve with conditions. Recommended Motion I move to approve the proposed the final design for the second unit on Lot 52, Block 4, Wildridge Subdivision as depicted on the application and plan set dated March 24, 1998 with the following conditions: 1. Grading plan shall be revised to provide positive drainage from area between the garages. Town of Avon Community Development j:\p&z\staff reports\1998\050598\52b4wr.doc (970) 748-4030 Fax (970) 949-5749 Lot 52, Block 4, Wildridge Subdivision, Final Design Review, page 3 May 5, 1998 Planning & Zoning Commission meeting 2. All disturbed areas that are not part of the formal landscaping will be re -vegetated with native brush and a native grass mixture indigenous to the area. Limits of lawn shall be delineated on the site plan. The Planning and Zoning Commission hereby approves the second driveway access with the finding that the second driveway is necessary to meet turning radius and landscaping requirements. P and Z also grants an exception from the 4 percent driveway grades at the driveway entrance and in front of the garage due to the pre-existing site conditions (existing house) and the fact that the lot is located on a low volume street. If you have any questions regarding this project or any planning matter, please call me at 949-4280 (extension 131), or stop by the Community Development Department. Respectfully submitted.- XG� Karen Griffit, P Town Planner Town of Avon Community Development j:\p&z\staff reports\1998\050598\52b4wr.doc (970) 748-4030 Fax (970) 949-5749 Lot 52, Block 4, Wildridge Subdivision, Final Design Review, page 4 May 5, 1998 Planning & Zoning Commission meeting Planning & Zoning Commission Action ❑ Approved as submitted ❑ Denied ❑ Approved with conditions (noted below) ❑ Tabled ❑ Withdrawn by applicant Conditions of approval, reasons for tabling or withdrawal of application, or basis for denial (refer to code or guidelines by number): Hunn, Att � Sue Railton, Secretary Town of Avon Community Development (970) 748-4030 Fax (970) 949-5749 Date Date -6—1 11( qr— j:\p&z\staff reports\1998\050598\52b4wr.doc