A. The maximum gross floor area of all enclosed structures on a lot shall not exceed the floor area ratio, as set in Larkspur Municipal Code Section 18.35.040, times the area of the lot, except as provided for in subsection (B) of this section, or as allowed by an exception permit, as is provided for in Larkspur Municipal Code Section 18.35.060.

B. In no case shall the application of this chapter reduce the gross floor area of a dwelling to less than minimum “living area required,” as prescribed in each Residential Zoning District’s regulations, plus a garage of four hundred (400) square feet for each single-family or duplex unit, and the minimum area required to provide covered parking for every multiple-family residential project. The additional gross floor area of the garages may not be transferred to the floor area of other structures.

C. The maximum gross floor area shall be increased equivalent to the area in square feet, up to eight hundred (800) square feet, of one accessory dwelling unit (ADU) or junior accessory dwelling unit (JADU) that complies with requirements for ministerial approval under Larkspur Municipal Code Section 18.23.070. In the event that an ADU or JADU is modified so that it no longer complies with the requirements under Larkspur Municipal Code Section 18.23.070 or this section (e.g., removal of the kitchen) the property owner shall obtain any necessary permits to remove or legalize the additional floor area. (Ord. 1066 § 5, 2023; Ord. 1030 § 2(12), 2018; Ord. 931 § 1, 2004)