San Francisco ADU permits and regulations 2021
While San Francisco follows statewide ADU laws, getting permits for a detached ADU is still not easy. San Francisco’s Planning Department has certain special requirements around things like landscape permeability and street trees. For more info, check out the resources below, compiled in 2021.
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Maximum ADU size
850 square feet for a one-bedroom unit; 1,000 square feet for a two-bedroom unit
Maximum ADU height
Minimum lot size
Side and rear setbacks
A minimum of 4 feet for both.
There may be additional requirements related to landscaping, seismic retrofitting, curb cuts, and more.
San Francisco ADU news 2021
Learn about local ADU initiatives and more.
CBS story: “SF Lawmakers Vote To Waive Fees For Property Owners Building In-Law Units”