Williamson County
What it takes to put a carport, garage, barn or RV cover on your property in Williamson County, Texas. Permit authority, wind speed, and who to call.
outline + city dots
slot, not yet drawn
Williamson County states that Texas counties have not been given general zoning authority by the legislature, so the county does not deal with most site plans or issue building permits, except for health and safety matters handled through the Williamson County and Cities Health District. The county permits it does issue on unincorporated land are a driveway permit for a connection to a county-maintained road, subdivision and certificate of compliance work through the County Engineer, and a Fire Marshal construction permit. That Fire Marshal permit reaches public buildings, commercial establishments and multi-family dwellings of four or more units, not a residential carport or garage.
This is the county's own description of its authority. It does not cover land inside Georgetown, Round Rock, Cedar Park or any other city limit or extraterritorial jurisdiction, and it is not a septic or floodplain answer. A driveway permit is still required if the delivery changes an access point onto a county road.
Texas counties have not been given general zoning authority by the state legislature, so the County does not deal with most site plans or issue building permits except for health and safety issues handled by the Williamson County and Cities Health District.
A Driveway Permit is required to construct a proposed driveway or modify an existing driveway connecting to a county-maintained roadway.
public buildings, commercial establishments, and multi-family residential dwellings consisting of four or more units
Regional band for south and central texas. 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 Williamson 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.
Williamson County Engineer / Road and Bridge Division
3151 SE Inner Loop, Georgetown, TX 78626 Call (512) 943-3330 County permit page ↗Opens ATC Hazards by Location, the source we use for wind, snow and seismic values.