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Knox County, TN Fence Regulations: Height Limits (2026)

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

Key Facts

General fence required?
No
Restrictive-zone parking
5-6 ft opaque enclosure
Mobile home park
7-foot solid enclosure
Salvage/wrecking storage
8-12 ft opaque fence
Scope
Unincorporated county

Summary

Knox County does not require ordinary residential fences, but its Zoning Ordinance mandates opaque screening fences in specific cases, such as a 5-to-6-foot enclosure around off-street parking approved in a restrictive zone and a 7-foot enclosure around mobile home parks.

City-specific rules exist: Knoxville has its own height limits rules that differ from Knox County's county-level regulations. If you live in Knoxville, check the city-specific page instead.

All sides of the lot, except those openings for ingress and egress, shall be enclosed with an opaque ornamental fence, wall or dense evergreen hedge having a height of not less than five (5) feet nor more than six (6) feet. Such fence, wall or hedge shall be maintained in good condition.

Full Breakdown

For a standard single-family lot, no fence is required. The Knox County Zoning Ordinance imposes fencing only in specific screening and buffering situations. Where off-street parking is approved as a use-on-review in a more restrictive zone, all sides except ingress and egress must be enclosed with an opaque ornamental fence, wall, or dense evergreen hedge between 5 and 6 feet high (Sec. 3.51.10.B). A mobile home park must be entirely enclosed at its boundaries by a solid wall, fence, or evergreen hedge at least 7 feet high, set back 25 feet from any public street. Salvage or wrecking storage requires an 8-to-12-foot opaque enclosure.

Violations & Fines

Failing to install a required screening fence or buffer violates the Zoning Ordinance and carries a $10-$500 civil penalty under Section 6.20.02, with each day a separate offense.

Frequently Asked Questions

Am I required to fence my yard?
No. The county does not require fencing on an ordinary residential lot. Fencing is required only for specific uses like screened parking, mobile home parks, and salvage storage.
What height must a required screening fence be?
It depends on the use: 5 to 6 feet for parking approved in a restrictive zone, at least 7 feet for a mobile home park, and 8 to 12 feet for salvage storage.

Sources & Official References

Other rules in Knox County

All Knox County rules

How Knox County compares: Cities That Allow the Tallest Residential Fences·Compare Knox County to another location·View the Tennessee fence regulations overview

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Height Limits in Cities Across Knox County