Backyard project permits in Phoenix, AZ
Phoenix lets you build bigger sheds than the model code without a permit, but almost any fence over 3 ft needs one.
Rules last checked by a person on October 19, 2026. Guidance only; confirm with Phoenix 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 | Yes: Building permit |
| Garage24 by 20 ft detached garage with lights | Yes: Building permit, Electrical permitConfidence: medium |
| ADU650 sq ft detached backyard cottage | Yes: Site planning approval, Building permit |
Check your exact lot
Permit office
Phoenix Building Construction Code (PBCC) section 105.2; Phoenix Zoning Ordinance ADU provisions.
- Phoenix SHAPE PHX permits
- Phoenix Planning & Development
- Phoenix Zoning Ordinance
- Phone: (602) 262-7811