Do you need a permit for a deck in Houston, TX?
It depends on size and placement.
Building permit: Houston kept the model-code deck exemption: freestanding, 200 sq ft or less, 30 in or lower, not serving an exit door.
Floodplain development permit: If the lot is in a FEMA special flood hazard area, all development there needs a permit.
Rules last checked by a person on October 19, 2026. Guidance only; confirm with Houston 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 Houston
| Permit | When it applies |
|---|---|
| Building permit | Houston kept the model-code deck exemption: freestanding, 200 sq ft or less, 30 in or lower, not serving an exit door.Confidence: medium |
| Floodplain development permit | If the lot is in a FEMA special flood hazard area, all development there needs a permit. |
Local details
- Houston's summary of local amendments lists changes to the shed, fence and flatwork exemptions only, so the deck rule follows the 2021 IRC.
- 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.
- Houston has no zoning. Deed restrictions cover a large share of the city and often set fence heights, setbacks and whether a second unit is allowed. Check your subdivision's restrictions (Harris County Clerk records) before you build.
How to apply
- Houston Permitting Center
- Phone: (832) 394-9000
Questions people ask
- When does a deck need a building permit in Houston?
- Houston kept the model-code deck exemption: freestanding, 200 sq ft or less, 30 in or lower, not serving an exit door. Freestanding decks up to 200 sq ft and 30 in high that don't serve an exit door are exempt.
- Where do I apply for a deck permit in Houston?
- Apply through Houston Permitting Center, or call (832) 394-9000.
Sources
- Houston Permitting Center, 2021 IRC significant changes and Houston amendments. Checked 2026-10-19.
The floor area limit for one story accessory structures has been reduced from 200 SF to 120 SF. Height limit of fences not requiring permit increased to 8 ft from 7 ft with an added provision that they are not constructed of masonry or concrete, and that ar…
- 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...