Backyard project permits in San Francisco, CA
San Francisco allows one small exempt shed per lot, and its own city pages disagree on the size limit, so SetbackIQ applies the stricter one.
Rules last checked by a person on October 19, 2026. Guidance only; confirm with San Francisco before you build.
| Typical project | Permit? |
|---|---|
| Shed10 by 12 ft shed, 10 ft tall, no power | Yes: Building permitConfidence: medium |
| Deck160 sq ft freestanding deck, 24 in high | No: no permit as describedConfidence: low |
| Fence6 ft wood fence in the back yard | Yes: Building permitConfidence: medium |
| Garage24 by 20 ft detached garage with lights | Yes: Building permit, Electrical permitConfidence: low |
| ADU650 sq ft detached backyard cottage | Yes: Building permit, Ministerial ADU approvalConfidence: medium |
Check your exact lot
Permit office
San Francisco Building Code 106A.2 and Planning Code (Sec. 136 for yard structures); State ADU Law.
- Check if your project needs a permit (sf.gov)
- SF Property Information Map
- Phone: (628) 652-3200