Brazoria County primarily handles permitting for unincorporated areas, focusing on septic, driveway, and floodplain development permits. Incorporated cities maintain their own building departments and zoning authority. Development in coastal areas is subject to additional review under the Texas Open Beaches Act and specific floodplain management regulations.
How this fits with the state
The state authority here is Texas Department of Licensing and Regulation; Texas State Board of Plumbing Examiners. The county file does not replace that — it adds the permit office, local overlays, and the actual filing path.