Main Component of the Project
Residential Addition/Accessory Structure
Location
30 Shell Dr., Mill Valley, CA 94941
Assessor's Parcel: 033-071-42
Status
Merits Review
Project Planner
Joshua Bertain
415-473-3171
Applicant
Sean Bailey Designs
303-564-6052
Project Description
The applicant requests Design Review approval to construct a 5,845-square-foot primary residence with an attached 540-square-foot garage and a sports court following the demolition of an existing 2,235-square-foot residence and improvements on a property located in an unincorporated area of Mill Valley. The proposed development also includes a detached 971-square-foot Accessory Dwelling Unit (ADU) that would be approved by a ministerial Building Permit. The proposed development would result in a building area of 7,356 square feet, a floor area of 6,816 square feet, and a floor area ratio of 34 percent on the 20,258 square foot lot.
The primary residence would reach a maximum height of 29 feet above the surrounding grade, and the exterior walls would have the following setbacks: 25 feet from the southern front property line, 10 feet from the eastern side property line, 10 feet from the western side property line, and 63 feet from the northern rear property line. The outbuilding would reach a maximum height of 10 feet above the surrounding grade and would have the following setbacks: more than 100 feet from the southern front property line, 10 feet from the eastern side property line, 33 feet from the western side property line, and 63 feet, 7 inches from the northern rear property line. Various site improvements would also be entailed in the proposed development, including a new pool, sports court, site retaining walls, and landscaping.
Design Review approval is required pursuant to Section 22.42.020.B of the Marin County Development Code because the project proposes the development of a primary residence with an attached garage on a property in a conventional zoning district that would contain more than 3,500 square feet of floor area. The Accessory Dwelling Unit is not subject to Design Review nor any other type of discretionary review.
Land Use Info
Zoning: RA-B2 (Residential Agriculture)
Countywide Plan Designation: SF5 (Low Density Residential)
Community Plan (if applicable): Strawberry