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Knox County, Tennessee

Unincorporated Knox County fence permit

Do you need a fence permit in the Unincorporated Knox County? Not confirmed. Contact Unincorporated Knox County before you build; the rules below are what we found in the ordinance.

buildit.dog can turn a fence drawn on an aerial photo of your lot into a complete permit application package for Unincorporated Knox County (site plan, aerial photo and filled-in details) in a few minutes. Start with your address.

Quick facts

Permit required
Not confirmed
Front (street) yard
No fence, wall, hedge or yard ornament that materially impedes vision across a required front yard above 3 1/2 feet (Sec. 3.20.04) source
Corner lots
Nothing that obstructs vision between 2 1/2 and 10 feet above the road crown within the visibility triangle on corner lots (Sec. 3.20.04) source
How to apply
Call 865-215-2325 source

Still being confirmed with Unincorporated Knox County: Does a residential fence in unincorporated Knox County need a zoning permit, and what are the side/rear height limits?

Plan your fence and build the applicationLook up your address, draw the fence on an aerial photo of your lot, and get a site plan and filled-in application.

How to file for a fence permit in the Unincorporated Knox County

Steps based on knoxcounty.org — zoning

  1. Call Knox County Codes Administration at 865-215-2325 to confirm whether your fence needs a zoning permit.
  2. Call 811 before digging.

Who to contact

Zoning Department, Codes Administration and Enforcement

Phone
865-215-2325
Hours
Monday to Friday, 8:00 am to 4:30 pm
Address
Zoning Department, 400 W. Main Street, Room 547, Knoxville, TN 37902-2405

Contact from knoxcounty.org — zoning

Other rules to know

  • Knox County zoning is administered by Codes Administration (Zoning Department). General side/rear fence height limits and any fence permit requirement could not be confirmed from the pages opened.

Before you dig

Call 811 before digging post holes so underground utility lines are marked. Find your lot corner markers and keep the fence on your side of the line. Find your lot corner markers and keep the fence on your side of the line. County parcel maps can be off by several feet; if you're not sure where the line is, a licensed land surveyor can stake it.

Frequently asked questions

Do I need a permit to build a fence in the Unincorporated Knox County, TN?

Not confirmed. Contact Unincorporated Knox County before you build; the rules below are what we found in the ordinance.

How tall can a fence be in the Unincorporated Knox County?

Front (street) yard: No fence, wall, hedge or yard ornament that materially impedes vision across a required front yard above 3 1/2 feet (Sec. 3.20.04). Corner lots: Nothing that obstructs vision between 2 1/2 and 10 feet above the road crown within the visibility triangle on corner lots (Sec. 3.20.04).

How do I apply for a fence permit in the Unincorporated Knox County?

Call Knox County Codes Administration at 865-215-2325 to confirm whether your fence needs a zoning permit. Call 811 before digging. buildit.dog can turn a fence drawn on an aerial photo of your lot into a complete permit application package for Unincorporated Knox County (site plan, aerial photo and filled-in details) in a few minutes.

Who do I contact about a fence permit in the Unincorporated Knox County?

Zoning Department, Codes Administration and Enforcement. Phone 865-215-2325.

Sources

Summarized from Unincorporated Knox County's own ordinances, forms and permit pages. Each link opens the original.

Ordinance: Knox County Zoning Ordinance Sec. 3.20.04 Visibility triangle

  1. knoxcounty.org — codes
  2. knoxcounty.org — zoning
  3. knoxplanning.org — 2025 04 21

Work for Unincorporated Knox County? Help us keep this right

If anything on this page is wrong or out of date, tell us and we'll fix it. Municipal staff reports are reviewed first. Please include a link to the current ordinance, form or fee schedule if you can.