When does a deck need a building permit in Phoenix?

Phoenix exempts only decks and platforms 30 in or less above grade with no roof. Uncovered decks no more than 30 in above grade, not over a basement or story below and not part of an accessible route, are exempt.

Where do I apply for a deck permit in Phoenix?

Apply through Phoenix SHAPE PHX permits, or call (602) 262-7811.

Do you need a permit for a deck in Phoenix, AZ?

It depends on size and placement.

Uncovered decks and platforms up to 30 in above grade are exempt, with no area limit in the list.

Any roof over the deck ends the exemption.

Rules last checked by a person on October 19, 2026. Guidance only; confirm with Phoenix 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 deck can need in Phoenix

Permit	When it applies
Building permit	Phoenix exempts only decks and platforms 30 in or less above grade with no roof.
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

Questions people ask

When does a deck need a building permit in Phoenix?: Phoenix exempts only decks and platforms 30 in or less above grade with no roof. Uncovered decks no more than 30 in above grade, not over a basement or story below and not part of an accessible route, are exempt.
Where do I apply for a deck permit in Phoenix?: Apply through Phoenix SHAPE PHX permits, or call (602) 262-7811.

Sources

Phoenix Building Construction Code 2024, Chapter 1 amendments (Sec. 105.2, effective 8/1/2025). Checked 2026-10-20.
One-story detached accessory structures used as tool and storage sheds, playhouses, non-cantilevered shade structures... floor area is not greater than... 200 square feet, except for unaltered Intermodal Shipping Containers not greater than 320 square feet.…
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...