Do you need a permit for a deck in Los Angeles, CA?
It depends on size and placement.
Uncovered decks and platforms up to 30 in above grade need no permit, with no area limit.
The deck can't sit over a basement or story below.
Rules last checked by a person on October 19, 2026. Guidance only; confirm with Los Angeles 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 Los Angeles
| Permit | When it applies |
|---|---|
| Building permit | LA exempts only platforms and decks 30 in or less above grade that aren't over a basement or story below.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
- LADBS
- ZIMAS parcel and zoning lookup
- Phone: 311 (213-473-3231)
Questions people ask
- When does a deck need a building permit in Los Angeles?
- LA exempts only platforms and decks 30 in or less above grade that aren't over a basement or story below. Decks and platforms no more than 30 in above grade, not over a basement or story below, are exempt.
- Where do I apply for a deck permit in Los Angeles?
- Apply through LADBS, or call 311 (213-473-3231).
Sources
- LAMC 91.106.2, Exceptions (Building Code; 2021 text, via LA City Planning). Checked 2026-10-20.
91.106.2. EXCEPTIONS: Permit not required for: 1. Where the work regulated by this Code is valued at $500.00 or less... 5. Platforms, walks and driveways not more than 30 inches (762 mm) above grade and not over any basement or story below.
- 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...