Main Component of the Project
Residential Addition/Accessory Structure
307 Seymour Lane
Mill Valley, CA 94941
Parcel Number: 047-125-14
The applicant requests Design Review approval to raise the roof height of an existing single-family residence in Mill Valley. The existing roof height is 15 feet and encroaches into the rear yard setback. The proposed residence would have the following setbacks from the exterior walls: 74 feet from the western front property line; 5 feet from the northern side property line; 3 feet from the southern side property line; and 0 feet from the eastern rear property line. Although not triggering Design Review the proposed development includes a new 400 square foot detached garage and a new 828 square foot addition onto the existing single-family residence.
Design Review approval is required because the primary structure encroaches into the required rear year setback, but is exempt from Variance approval pursuant to Development Code section 22.54.045E.
Zoning: R1-B1 (Residential, Single-Family, 6,000 sq. ft minimum lot area)
Countywide Plan Designation: SF6 (Single Family, 4-7 units/acre)
Community Plan (if applicable): Tamalpais Area Community Plan