Fence Rules in Anderson County, TN (Clinton, Oak Ridge, Norris)

Anderson County publishes the most specific fence placement rules of any jurisdiction we work in. Most counties say "do not block sightlines." Anderson County tells you exactly how tall and exactly how far.

Height and Permits

Under the International Residential Code as adopted, fences seven feet or lower are exempt from building permits. The county does not publish a strict height limit for standard side or rear yard fences in residential districts, provided they stay under that seven-foot exemption threshold.

As everywhere, the permit exemption is not blanket approval. Building permit requirements are separate from zoning, setback and plat requirements.

The Front Yard Setback

This is the rule that catches people. Fences in front yards or abutting a public road must observe a 25-foot setback from the right-of-way.

Twenty-five feet is a lot of yard. On a typical county lot that means a front fence sits well back from the road, not along it. If your plan was to run fence along the front property line, this is the provision that changes it.

The Sight Triangle

Anderson County defines an intersection visibility zone and regulates it precisely:

• Within the 75-foot intersection visibility zone, no fence, wall or hedge may exceed three and a half feet above the average grade of the road centerline.
• Within that triangle, the band between 3.5 and 10 feet in height must stay clear of all visual obstructions.

So on a corner lot, your six-foot privacy fence has to stop and drop to 3.5 feet as it approaches the intersection. That is a design decision with a cost attached, and it is better to know before the material is ordered than after.

Note this applies to hedges too, not just fence.

Materials

Anderson County does not publish an exhaustive list of prohibited materials for standard residential fencing in unincorporated areas. The regulatory focus here is placement and visibility rather than appearance.

That is a real contrast with the City of Oak Ridge inside the same county, which does apply materials standards and has historic and overlay districts with character requirements.

Which Jurisdiction Are You In?

Anderson County contains Clinton, Norris, Oliver Springs, Lake City and part of Oak Ridge. The county rules above apply to unincorporated property only. Inside a city, the city ordinance governs.

Oak Ridge is the common confusion: the city spans Anderson and Roane counties, so an Oak Ridge mailing address does not tell you which rulebook applies. Oak Ridge city fence rules are different and use yard-based height limits.

Utilities and Drainage

The county's stated focus is public safety, sight distance and protecting public utility access. A fence must not encroach on a public right-of-way or a designated drainage easement.

Practically: know where your easements are before digging. Tennessee requires an 811 utility locate before excavation, and post holes count. Budget about three business days, and remember that private lines to barns, wells and outbuildings are never marked.

Terrain

Northern Anderson County runs into ridge country, and the same issues apply as elsewhere in the region: slope means the fence has to be stepped or racked to follow grade, commonly adding 10 to 25 percent to installed cost, and shallow rock means post holes that will not simply auger.

The valley ground is expansive red clay, which swells wet, shrinks dry, and works posts out of plumb if they were not set deep enough for it.

Frequently Asked Questions

How tall can a fence be in Anderson County, TN?

Fences seven feet or lower are exempt from building permits, and the county does not set a stricter height for standard side or rear yard residential fences. Front yards and sight triangles have their own limits.

How far back does a fence have to be from the road in Anderson County?

Fences in front yards or abutting a public road must observe a 25-foot setback from the right-of-way.

What is the sight triangle rule?

Within the 75-foot intersection visibility zone, no fence, wall or hedge may exceed 3.5 feet above the average grade of the road centerline, and the band between 3.5 and 10 feet must remain clear of obstructions.

Do Anderson County rules apply inside Clinton or Oak Ridge?

No. County rules govern unincorporated property. Inside an incorporated city the city ordinance applies, and Oak Ridge in particular uses yard-based height limits.

We Build Across Anderson County

We have been setting fence in Anderson County since 1973, in Clinton, Norris, Oliver Springs and the Oak Ridge area. We will tell you which jurisdiction your address falls under, what the setback and sight triangle mean for your specific lot, and put a firm written price in your hand at no charge.

Call (865) 988-9935 or request a free quote.

Anderson County · Clinton · Oak Ridge · Permit rules by jurisdiction

Summarized from the Anderson County Zoning Resolution and Planning and Development Department materials, current as of 2026. Confirm with the county before construction. Not legal advice.