Fence Rules & Regulations in Knox County Tennessee
The Short Answer: It Depends on Where You Are
Knox County and the City of Knoxville are not the same jurisdiction — and that matters for fencing. The rules inside Knoxville city limits differ from unincorporated Knox County, and municipalities like Farragut have their own separate ordinances on top of that. Before you order materials or call a contractor, you need to know which set of rules applies to your property.
At LC Fence, we've been installing fences across Knox County and Knoxville since 1973. We navigate these rules on every job. Here's what you actually need to know.
Knox County (Unincorporated Areas)
If your property is outside city limits, the Knox County Zoning Ordinance applies.
Permit Requirements
Fence permits in unincorporated Knox County are administered by the Knox County Department of Code Administration. Permit rules are separate from zoning and setback rules — a fence that is exempt from a permit must still comply with the zoning ordinance. Confirm the current permit threshold and application requirements for your specific parcel with Code Administration before you build.
Height Rules
The Knox County Zoning Ordinance (as amended April 21, 2025) does not set a blanket maximum fence height. It regulates visibility.
- Front yards: in a required front yard, § 3.20.04.B prohibits any fence, wall, hedge or yard ornament “which materially impedes vision across such yard above the height of three and one-half (3½) feet.”
- Corner lots: § 3.20.04.A prohibits any wall, fence, sign, structure, plant growth or other object that obstructs vision at elevations between two and one-half (2½) feet and ten (10) feet above the crown of the adjacent roadway within a visibility triangle.
- Side and rear yards: the zoning ordinance sets no maximum fence height. Practical limits there come from the building code and from HOA covenants.
Placement and Property Lines
- No fence in the public right-of-way.
- Fences must be located entirely on your property.
- Corner lots: under § 3.20.04.A, vision must not be obstructed within the visibility triangle at the elevations described above. The ordinance does not state a linear dimension for the triangle, so confirm how it is applied to your corner before you set posts.
- Fire hydrant clearance and finished-side (good-side-out) requirements are administered by the Knox County Department of Code Administration separately from the zoning ordinance — confirm both for your parcel.
Special Situations
Floodplains: Construction within a designated floodplain or floodway requires a Floodplain Development Permit and review by Stormwater Management. Fences cannot impede floodwater flow.
Historic Overlays: Properties within a Historic District or Technology Overlay may need a Certificate of Appropriateness before installing or modifying a fence.
Pool Fencing: Any pool, hot tub, or spa capable of holding more than 24 inches of water requires a permit. The safety fence is reviewed as part of that pool permit and must meet specific enclosure requirements under the International Swimming Pool and Spa Code.
City of Knoxville
Inside Knoxville city limits, fencing is governed by the City of Knoxville Zoning Code (Article 10) and the 2018 International Residential Code. Administration is through the Plans Review and Inspections Division — (865) 215-4311.
Permit Requirements
The height and placement standards in Article 10 are zoning requirements and are separate from building permit requirements. We do not list a permit height threshold here because the zoning code does not set one — confirm whether your fence needs a permit, and what the application requires, with the City’s Plans Review and Inspections office at (865) 215-4311 before you build. Pool safety barriers are reviewed as part of the pool permit process.
Height Rules
Under the City of Knoxville Zoning Code, Article 10, § 10.3(L):
- Front yard — specifically from five feet behind the front building line forward to the front lot line — and the corner side yard: privacy fences and walls are limited to 42 inches (three and a half feet). Open fences have no height limit in those areas.
- All other yards: there is no height limit on privacy fences, walls or open fences.
- Placement: fences may be constructed at the boundaries of a lot without setback, with the exception of the required visibility triangle.
Corner Lots and Sight Distance
Under § 10.1(F), sight distance near intersections is determined by the City of Knoxville Department of Engineering rather than by a fixed dimension stated in the code. Corner lots are therefore reviewed case by case — confirm the required visibility triangle for your address before you set posts.
Allowed and Prohibited Materials
Allowed: Chain link, pressure-treated wood, vinyl/PVC, wrought iron, aluminum, ornamental woven wire, welded wire mesh.
Not allowed as permanent fencing: Sheet metal, chicken wire, temporary construction fencing, snow fencing.
Farragut
The Town of Farragut has its own zoning code and some of the most active HOA communities in Knox County. In Farragut, you're typically navigating both town code and HOA covenants simultaneously. Check both before starting any project.
HOA Rules — Often Stricter Than the Code
Particularly in Farragut, West Knoxville, Hardin Valley, and newer subdivisions, Homeowners Associations impose fence restrictions well beyond what county or city code requires. Common HOA restrictions include:
- Approved materials only — often no chain link in front yards or street-visible areas
- Lower height limits (some HOAs cap at 6 feet even in rear yards)
- Specific color and finish requirements (white vinyl, black aluminum only)
- Style restrictions (picket only in front yards, no privacy panels visible from the street)
- Mandatory written HOA approval before installation begins
Violating HOA covenants can result in fines and mandatory fence removal — even if your fence fully complies with all county and city codes. Always get written HOA approval before any installation begins.
Practical Steps Before You Build
- Know your jurisdiction. Unincorporated Knox County, City of Knoxville, or Farragut? Each has different rules.
- Find your property lines. You are responsible. If there's uncertainty, get a survey before installation begins.
- Check for easements. Utility, drainage, and access easements restrict where fences can go. Call 811 (Tennessee One Call) before any digging.
- Review HOA covenants. Get written approval — not verbal — before starting.
- Check for floodplain designation. FEMA flood maps available at msc.fema.gov. Additional permits required if your property is affected.
- Talk to your neighbors. Tennessee law requires the finished side to face neighbors. A two-minute conversation prevents disputes that can drag on for years.
- Call LC Fence. We've navigated Knox County fence rules since 1973. Our project managers know every corner of this county and handle the planning so you don't have to guess.
What Happens If You Skip the Rules?
Installing a non-compliant fence in Knox County can mean fines, stop-work orders, and mandatory removal at your own expense. Title companies also flag unpermitted or non-compliant structures during home sales, which can delay or kill a transaction. The cost of doing it right the first time is always less than doing it twice.
LC Fence Handles All of This For You
LC Fence holds Tennessee Unlimited Contractor's License #54371. We know Knox County fence rules, Knoxville's zoning code, and the HOA requirements in Farragut, Hardin Valley, and every other community we serve. We've been doing this since 1973.
We'll walk your property, identify restrictions and easements, advise on what's allowed, and build a fence that meets every requirement.
Call us at (865) 988-9935 or visit lcfence.com for a free estimate. We serve Knox County, Loudon County, Roane County, Anderson County, Blount County, and all of East Tennessee.
