The applicant requests Design Review and Accessory Dwelling Unit Permit approval to demolish the existing one-story single-family residence and construct a new two-story 5,934-square-foot single-family residence, with an attached 822 square foot garage, and a detached 922 square foot accessory dwelling unit, in unincorporated San Anselmo. The proposed development would consist of 6,157 square feet of total building area and 5,934 square feet of total floor area, which would result in a floor area ratio of 7.3 percent on the 81,619-square-foot (1.87-acre) lot. The single-family residence would reach a maximum height of 27 feet 3 inches above existing grade, and the accessory dwelling unit would reach a maximum height of 18 feet 3 inches above existing grade. The exterior walls of the main residence would have the following setbacks: 37 feet from the northern property line; 95 feet 7 inches from the southern side property line; 25 feet 7 inches from the western property line, and 11 feet 8 inches from the eastern property line. The exterior walls of the accessory dwelling unit would have the following setbacks: 60 feet from the northern property line; 81 feet 10 inches from the southern property line; 39 feet from the western property line; and 194 feet 7 inches from the eastern property line.
Design Review approval is required pursuant to Marin County Code Section 22.42.020.A because the property is located within a Planned Zoning District. Accessory Dwelling Unit approval is required pursuant to Marin County Code Section 22.56.020.
Zoning: R1-BD (Single-Family Residential, Sleepy Hollow, 15,000 to 45,000 minimum lot area)
Countywide Plan Designation: SF4 (Single Family, 1-2 units/acre)