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Williamson County, TX Landscaping Rules: Weed Ordinances (2026)

Few Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

County lawn code
None
Weeds threshold
Over 36 inches
Trigger
Within 300 ft of residence
Subdivisions
HOA covenants control

Summary

Williamson County has no lawn grass-height ordinance and cannot zone. In the unincorporated area, uncultivated growth over 36 inches becomes an abatable weeds nuisance under state law; inside subdivisions, HOA covenants set mowing standards.

City-specific rules exist: Cedar Park, and Round Rock have their own weed ordinances rules that differ from Williamson County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

"Weeds" means all rank and uncultivated vegetable growth or matter that: (A) has grown to more than 36 inches in height; or (B) may create an unsanitary condition or become a harborage for rodents, vermin, or other disease-carrying pests, regardless of the height of the weeds.

Full Breakdown

Texas counties have no zoning power, so unincorporated Williamson County sets no maximum height for a maintained residential lawn. The only height-based tool is Health and Safety Code Chapter 343: rank, uncultivated growth taller than 36 inches counts as weeds and, within 300 feet of another residence or business, the Commissioners Court can order abatement. Mowed turf below that threshold is unregulated by the county. Homeowners inside Georgetown, Round Rock, Cedar Park, Leander, Hutto, and Taylor follow their city codes, and platted subdivisions enforce lawn upkeep through recorded HOA deed restrictions.

Violations & Fines

County weed abatement runs on written notice; if uncorrected the Commissioners Court may abate the growth and assess costs against the property as a lien. HOA lawn violations draw fines under recorded covenants.

Frequently Asked Questions

Does Williamson County enforce a grass height limit?
No. The county cannot zone. Only uncultivated growth over 36 inches within 300 feet of a residence is abatable as a state weeds nuisance.
Who enforces lawn height in my neighborhood?
Your HOA. Recorded deed restrictions set mowing and upkeep standards and levy fines; the county plays no role inside platted subdivisions.

Sources & Official References

Other rules in Williamson County

All Williamson County rules

How Williamson County compares: Cities with the Strictest Weed and Property Maintenance Rules·Texas rules heatmap·Compare Williamson County to another location·View the Texas landscaping rules overview

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Weed Ordinances in Cities Across Williamson County