Williamson County sets no lot-coverage or impervious-surface limit. Texas counties cannot zone. Coverage caps in unincorporated areas come from HOA deed restrictions and drainage rules tied to floodplain permits, not county ordinance.
No countywide rule limits how much of a lot may be covered by buildings or pavement in unincorporated Williamson County. Texas counties have no zoning authority; their sole land control is subdivision platting under Local Government Code Chapter 232. Impervious-cover limits come from recorded HOA deed restrictions and from stormwater and floodplain requirements when a lot drains toward Brushy Creek, the San Gabriel River, or other regulated waterways. Cities such as Georgetown and Round Rock apply their own impervious-cover limits inside city limits.
The county files no lot-coverage citations in unincorporated areas. HOAs enforce coverage covenants civilly, and drainage problems are handled through the county floodplain permit, not zoning.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Round Rock, TX
Round Rock restricts construction noise to 7 AM–7 PM Monday through Friday. Weekend and holiday construction outside these hours is prohibited under the nois...
Round Rock, TX
Round Rock Code Chapter 14, Article VIII establishes time-based quiet hours and uses a 'plainly audible' standard. Quiet hours run 10 PM–7 AM on weekdays and...
Round Rock, TX
Round Rock Chapter 14 and Chapter 4 (Animals) address barking dogs as a public nuisance. Persistent barking that unreasonably disturbs neighbors is enforceab...
Round Rock, TX
Round Rock requires driveways to comply with impervious cover limits and obtain permits for new or expanded driveway construction. Vehicles may be parked on ...
Round Rock, TX
Round Rock allows residential street parking subject to standard restrictions. Vehicles must face the direction of traffic, park no closer than 15 feet from ...
Round Rock, TX
Round Rock restricts commercial vehicle and heavy equipment parking in residential zones. Large commercial trucks and equipment may not be regularly stored o...
See how Round Rock's lot coverage limits rules stack up against other locations.
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