Backyard project permits in San Jose, CA
San Jose's shed exemption ends the moment you wire it, and front-yard fences over 3 ft need a permit.
Rules last checked by a person on October 19, 2026. Guidance only; confirm with San Jose before you build.
| Typical project | Permit? |
|---|---|
| Shed10 by 12 ft shed, 10 ft tall, no power | No: no permit as described |
| Deck160 sq ft freestanding deck, 24 in high | No: no permit as described |
| Fence6 ft wood fence in the back yard | No: no permit as described |
| 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 Jose Building Division Bulletin 201 (When Is a Building Permit Required?, 10/10/2024); Title 20 zoning; State ADU Law.
- SJPermits.org
- San Jose Building Division
- Phone: (408) 535-3555