Brazoria County
What it takes to put a carport, garage, barn or RV cover on your property in Brazoria County, Texas. Permit authority, wind speed, and who to call.
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Brazoria County runs its building permits out of the Floodplain and 911 Administration office, and the trigger is size, not who builds it. The county states that building permits are required for any new or relocated structure more than 200 sq ft, manufactured home, or addition more than 50% of present evaluation of existing structure. A delivered carport or garage over 200 square feet is a new or relocated structure by that wording. The county also sets a finished floor rule: two feet above the FEMA elevation inside a flood hazard area, 24 inches above existing grade outside one.
This is the county's floodplain and building permit office speaking. It is a separate question from the septic permit, which the Environmental Health Department issues, and from the TDI windstorm certification that applies to Brazoria as a first-tier coastal county.
Building permits are required for any new or relocated structure more than 200 sq ft, manufactured home, or addition more than 50% of present evaluation of existing structure.
Please allow up to 20 business days.
No credit/debit cards. Cash, Check or Money Order only.
451 N Velasco Suite 270, Angleton, TX 77515
Regional band for coastal tier, 1 to 10 miles inland. Wind speed follows your address, not the county line, so this is context and not a site figure.
ASCE 7, Risk Category II. Look up your exact address →
Cities and communities in Brazoria County
Inside city limits the city's rules apply on top of the county's, and cities do zone. We have not yet read each city's ordinance, so every row below is marked unverified.
Brazoria County Floodplain / 911 Administration
Brazoria County Courthouse, 237 E. Locust St., Angleton, TX 77515 Call 979.849.5711 County permit page ↗Opens ATC Hazards by Location, the source we use for wind, snow and seismic values.