Swimming pool permit rules in Williamson County, TX — also covering above-ground pools, in-ground pools, and spa installations — set fencing, barrier, alarm, and inspection requirements.
Unincorporated Williamson County issues no building permit for a residential pool. Texas enforces no statewide residential building code outside city limits, so pool construction, plumbing, and electrical work proceed without county plan review.
Williamson County has no building department and no authority to require a building permit for a private swimming pool in the unincorporated county. Texas enforces no statewide residential building code outside city limits. The county reviews on-site septic (OSSF) systems and floodplain development, so a pool near a septic drainfield or in a mapped floodplain draws county involvement. Electrical work follows the National Electrical Code through a state-licensed electrician, not county inspection. Inside Georgetown, Round Rock, Cedar Park, Leander, and Hutto, city building permits apply instead.
No county pool permit exists to violate. Building a pool over a septic drainfield or in a floodplain without OSSF or floodplain review triggers county enforcement.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Williamson County, TX
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Williamson County, TX
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Williamson County, TX
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