Do you need a permit for a fence in San Francisco, CA?
It depends on size and placement.
Fences under 6 ft along the rear and side lot lines behind the house are exempt.
Rules last checked by a person on October 19, 2026. Guidance only; confirm with San Francisco before you build.
Check your exact lot
Setbacks depend on your zoning district, and a flood zone can change the permit answer. Enter your address to see both.
Permits a fence can need in San Francisco
| Permit | When it applies |
|---|---|
| Building permit | San Francisco's exemption covers only fences under 6 ft along the rear and side lot lines at the rear of the property.Confidence: medium |
| Floodplain development permit | If the lot is in a FEMA special flood hazard area, all development there needs a permit. |
Local details
- Call 811 at least a few days before you dig footings or post holes. Utility locating is free.
- HOA covenants and deed restrictions can be stricter than city rules. Check yours before you build.
How to apply
- Check if your project needs a permit (sf.gov)
- SF Property Information Map
- Phone: (628) 652-3200
Questions people ask
- When does a fence need a building permit in San Francisco?
- San Francisco's exemption covers only fences under 6 ft along the rear and side lot lines at the rear of the property. Fences under 6 ft along the rear and side lot lines behind the house don't need a permit.
- Where do I apply for a fence permit in San Francisco?
- Apply through Check if your project needs a permit (sf.gov), or call (628) 652-3200.
Sources
- sf.gov, Check if your construction project needs a permit. Checked 2026-10-19.
One-story detached accessory buildings... used as tool and storage sheds... projected roof area less than 100 square feet and no taller than 8 feet... Fences less than 6 feet high located at the rear and side lot lines at the rear of the property.
- 44 CFR 59.1, definition of development (NFIP). Checked 2026-10-19.
Development means any man-made change to improved or unimproved real estate, including but not limited to buildings or other structures...
- 44 CFR 60.3, floodplain management criteria. Checked 2026-10-19.
Require permits for all proposed construction or other development in the community...