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Knox County, TN Right to Farm: Agricultural Zoning Protection (2026)

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

Key Facts

Governing section
Zoning Ordinance Sec. 5.23.01
Exemption
Qualifying farm uses skip planning commission review
Zone
RP, Rural Preservation Zone
Max lot coverage
10% of lot area
Minimum lot area
15 acres per dwelling
Setbacks
50 ft front, side and rear
Height limit
35 ft (silos exempt)

Summary

Knox County's RP Rural Preservation Zone recognizes Tennessee's Right to Farm Act: agricultural uses that are lawful under state law and comply with state regulations are exempt from Knoxville-Knox County Planning Commission review under Zoning Ordinance Sec. 5.23.01. The zone otherwise limits development to uses compatible with long-term farming, capping lot coverage at 10 percent and requiring 15 acres per dwelling.

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

5.23.01. General description. The rural preservation zone is provided to help insure the continued production of agricultural commodities by encouraging preservation of productive agricultural lands and the open space, wildlife habitat, and scenic corridor value that productive agricultural lands provide. Uses allowed within the district are intended to be limited to uses which are compatible with the long-term agricultural productivity of lands. The general intent of the district is to encourage farming without undue burden on the landowner. Applications for Rural Preservation zoning shall be reviewed for: A.Preservation of agricultural and forest lands and activities;B.Water supply protection; and/orC.Conservation of natural, scenic or historic resources. Note: Certain agricultural uses are permissible by Tennessee state law under the Right to Farm Act and other regulations. These uses, if permissible and deemed in compliance with state regulations, are exempt from planning commission review.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 23).

Full Breakdown

The RP, Rural Preservation Zone exists "to help insure the continued production of agricultural commodities by encouraging preservation of productive agricultural lands," and Sec. " The same section carries the county's clearest right-to-farm language: a note explaining that "certain agricultural uses are permissible by Tennessee state law under the Right to Farm Act and other regulations," and that uses meeting that standard "are exempt from planning commission review" entirely, meaning a qualifying farm operation does not need a use-on-review hearing before the Knoxville-Knox County Planning Commission.

Uses permitted outright in the RP zone under Sec. 02 include agricultural production, one office incidental to the farm, roadside stands for produce grown on site, agritourism, employee housing tied to an active agricultural operation, and animal feed and sales yards. Uses permitted on review include rural retreats, utility facilities, churches, dog kennels and bed-and-breakfast lodging. The zone's own area regulations, separate from the right-to-farm exemption, set a 50-foot setback on all sides, a 250-foot minimum lot frontage, 15 acres of lot area per dwelling, a 10 percent maximum lot coverage, and a 35-foot height limit except for silos and other agricultural production and storage structures, under Secs. 05.

Violations & Fines

There is no separate penalty clause for the right-to-farm exemption itself: it simply removes a qualifying agricultural use from the planning commission's use-on-review process. Any other violation of RP zone standards, such as building outside the 50-foot setback or exceeding 10 percent lot coverage, is enforced the same way as elsewhere in the zoning ordinance: the Department of Code Administration and Enforcement can assess a civil penalty of $10 to $500 per day under Sec. 6.20.02.A, with appeal to the Board of Zoning Appeals within 30 days under Sec. 6.60.05.

Frequently Asked Questions

Does Knox County have a right-to-farm ordinance?
Knox County does not enact its own right-to-farm statute; instead its Zoning Ordinance Sec. 5.23.01 recognizes Tennessee's state Right to Farm Act directly, stating that agricultural uses permissible under that state law and in compliance with state regulations are exempt from Knoxville-Knox County Planning Commission review. The protection lives in the RP, Rural Preservation Zone's general description rather than a standalone farming chapter.
What agricultural uses are automatically allowed in the RP zone?
Sec. 5.23.02 permits agricultural production, one office incidental to the farm, detached dwellings, on-site roadside produce stands, farm machinery operation and primary processing, employee housing tied to the operation, natural conservation areas, agritourism, and animal feed and sales yards without a use-on-review hearing.
What is the minimum lot size to build a house in the RP zone?
Sec. 5.23.04.E requires 15 acres of lot area for each dwelling in the RP, Rural Preservation Zone, well above the 1-to-2 acre minimums in the county's A Agricultural and E Estates zones, reflecting the district's purpose of preserving large working farm parcels rather than rural home sites.
Can I build a farm stand or barn without planning commission approval?
If the structure supports a use listed as permissible under Tennessee's Right to Farm Act and complies with state agricultural regulations, Sec. 5.23.01 exempts it from Knoxville-Knox County Planning Commission review. Structures still need a building permit from the Department of Code Administration and Enforcement under Sec. 6.10.01 and must meet the zone's 50-foot setbacks and 10 percent lot coverage cap.

Sources & Official References

Other rules in Knox County

All Knox County rules

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