Permitting is highly decentralized; the cities of Bryan and College Station manage all building permits within their respective city limits. Brazos County Development Services handles permits for unincorporated areas, primarily focusing on septic systems, floodplain development, and driveway access. No county-wide zoning exists, but specific flood hazard areas require additional review.
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.