The applicant requests Design Review approval to construct a detached, one-story, 450-square-foot accessory structure (garage) on a lot located in south San Rafael. The proposed accessory structure, in combination with existing development and proposed ADU on the site, would result in a floor area ratio of 15 percent on the 34,840 square foot lot. The proposed building would reach a maximum height of approximately 11 feet, one inch above surrounding grade and the exterior walls would have the following setbacks: three feet from south front property line; 3 feet east side property line; over 50 feet from all other property lines. Various site improvements would also be entailed in the proposed development, including site clearing and grading, new driveway, and other general improvements to accommodate the proposed project.
The ADU component of the project will be reviewed and approved under a separate ministerial permit.
Design Review approval is required under Marin County Code Section 22.20.090.C.1.B because the detached accessory structure is located three feet from the front and side property lines where setbacks of 30 feet and 20 feet, front and side respectively, are required by the R1-B4 zoning district. Category 2 Accessory Dwelling Unit Permit is required pursuant to Marin County Code Section 22.32.120.C.
Zoning: R1-B4 (Residential, Single-Family District)
Countywide Plan Designation: SF-3 (Single Family, one unit per one to five acres)
Community Plan (if applicable): N/A