Unincorporated Williamson County sets no fixed grass-height limit. Under Tenn. Code Ann. §5-1-115 the county can abate overgrowth only when it endangers health or safety, and owner-occupied homes are exempt. HOAs and cities like Franklin drive lawn standards.
There is no countywide inch limit for grass in unincorporated Williamson County. Tenn. Code Ann. §5-1-115 gives the county permissive authority to remedy overgrown vegetation only where it endangers public health, safety, or welfare or harbors rats and vermin. That abatement power does not reach owner-occupied residences; the statute's owner-occupied exception applies only to one small county in the 57,400 to 57,500 population class, not Williamson. Practically, most yard standards come from HOA covenants and from incorporated cities. Franklin caps weeds, grass, and plant growth at 12 inches.
County abatement follows a mailed 10-day notice; if ignored, the county remedies the condition and assesses the cost as a property-tax lien. Owner-occupied homes are exempt.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Williamson County, TN
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See how Williamson County's grass height limits rules stack up against other locations.
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