San Francisco ADU Laws & Regulations

Zoning

R-1/R-2

Lot Size

The minimum build-able lot size is 2,500 square feet. Smaller lots are subject to approval for development through the variance process.

Maximum ADU Floor area

1000sf

Rear Yard Coverage

NA

No. Bedrooms

2 bedrooms

Kitchen

Full kitchen facility required (permanent range, counter, refrigerator, sink)

Bath

Required

Parking

1 addnl. space*

Setbacks

Front

Side

Rear


Established by Zoning District

4ft

4ft

Height

16ft

Design

NA

Entryways

Required

Second Address

NA

ADU Regulation Website

 

https://sfplanning.org/accessory-dwelling-units#faqs