FENCE RULES – SULLIVAN (COUNTY), TENNESSEE
OVERVIEW
Residential fences are permitted on private property within unincorporated Sullivan County, subject to local regulations.
Residential fence regulations in unincorporated Sullivan County are established to facilitate property security while prioritizing public safety and the functionality of the transportation network. These standards are defined primarily through the Sullivan County Zoning Resolution and the Subdivision Regulations. The county classifies fences and walls as structures, a designation that ensures they adhere to specific placement and visibility standards, particularly when located near street intersections or within designated yard setbacks. These rules focus on maintaining clear sightlines for motorists and ensuring that private enclosures do not encroach upon public infrastructure.
Compiled From the Sullivan County Zoning Resolution and the Sullivan County Regional Planning Commission Subdivision Regulations as of February 2026.
GOVERNANCE
Regulatory authority for fencing within the unincorporated areas of the county is vested in the Sullivan County Department of Planning and Codes. Land use and placement standards are established by the Sullivan County Regional Planning Commission and the Board of County Commissioners. Technical building standards and permit thresholds are derived from the locally adopted International Residential Code (IRC), while the Board of Zoning Appeals serves as the administrative body for interpreting regulations and granting variances.
PERMIT AND APPROVAL REQUIREMENTS
• Building Permit Requirement: A building permit is mandatory for any residential fence or wall structure that exceeds seven (7) feet in height.
• Zoning Compliance: Building permit requirements are separate from zoning, setback, or plat requirements. Confirm any applicable zoning conditions, setbacks, and plat requirements with Sullivan County Department of Planning and Codes before construction.
• Floodplain Development: Any fence construction within a designated Area of Special Flood Hazard or Floodway requires a Floodplain Development Permit to ensure the structure does not impede the flow of floodwaters.
• Special Districts: Properties within a Planned Unit Development (PUD) or specialized overlay may require a site plan review to ensure fence materials and heights align with specific development standards.
FENCE PLACEMENT RULES
• Yard Allowances: Fences and walls are permitted to be located in any required yard or the open space of any required yard.
• Property Lines: The ordinance does not state a setback requirement for standard residential fences from property lines; however, fences must be located entirely on the owner’s property and must not encroach into rights-of-way or easements. The county does not provide surveying services to resolve private boundary disputes.
• Public Right-of-Way: Fences are strictly prohibited from encroaching into the public road right-of-way, which includes the land dedicated for roads, utility strips, and sidewalks.
• Easements: Fences must not abrogate or impair existing utility or drainage easements. If a fence is placed within an easement, the owner assumes the risk of removal at their own expense if access is required for maintenance or repair.
• Utility Safety: Tennessee’s Underground Utility Damage Prevention Act (TCA 65-31-101) requires everyone who digs to contact Tennessee 811 at least three (3) working days’ notice before starting a project. Tennessee 811 processes the notification of proposed excavation and notifies our member utilities, or their contract locators, to mark their underground facilities prior to the excavation.
FENCE HEIGHT AND VISIBILITY RULES
• General Height: Outside of specialized safety zones, the sources compiled for this page do not establish a universal maximum height cap for standard privacy fencing in side or rear yards; however, structures exceeding seven (7) feet trigger structural permit requirements.
• Vision Clearance at Intersections: In all districts, a vision clearance triangle is required at the intersection of two streets to preserve motorist sightlines.
• Sight Triangle Dimensions: This area is formed by measuring twenty-five (25) feet along the street rights-of-way from the point of their intersection.
• Intersection Height Limit: Within this 25-foot triangle, no fence, wall, or other obstruction to vision between the height of two and one-half (2.5) feet and ten (10) feet above the center line grade of the intersecting streets is permitted.
MATERIAL AND CONSTRUCTION LIMITS
• Structural Stability: All fences must be constructed of materials that result in a structure that is safe and stable for its intended use or ornamentation.
• Screening Standards: In certain developments adjacent to residential zones, required screening must be provided via a solid fence or wall to mitigate visual impact between differing land uses.
• Approved Materials: The sources compiled for this page do not define specific prohibitions for common materials such as wood, vinyl, or chain link for standard residential applications.
PRIVATE RESTRICTIONS
Homeowners Association (HOA) covenants and private deed restrictions operate independently of Sullivan County government. These private agreements often impose stricter standards regarding fence height, color, and allowable materials. The county does not enforce private subdivision covenants; property owners are responsible for ensuring compliance with their specific neighborhood rules, which function as legally binding civil contracts.
REVIEW AND ENFORCEMENT CONTEXT
Fence issues are typically reviewed during permit or approval review when required, and through complaint-based code enforcement. Examples include:
• Sight Triangle Obstructions: Reports of a fence in the 25-foot intersection triangle exceeding 2.5 feet in height, creating a traffic hazard.
• Permit Failures: Construction of a fence or wall exceeding seven (7) feet without an approved Building Permit.
• Right-of-Way Obstruction: Installation of a fence that encroaches upon or obstructs a public road right-of-way.
• Drainage Interference: Fences that block the flow of water in a designated drainage easement or floodway.
USING THIS INFORMATION
This page provides general orientation on how residential fence rules are structured and applied within unincorporated Sullivan County, based on publicly available materials reviewed as of February 2026.
In addition to local fence rules, certain Tennessee laws apply statewide. See Statewide fence laws in Tennessee.
It is not legal advice and does not replace official ordinances, permits, surveys, or professional guidance.
Rules and interpretations may change, and application may vary based on zoning district, site conditions, easements, rights-of-way, and private restrictions such as HOA covenants. Before purchasing materials or beginning construction, confirm current requirements and any site-specific limitations with Sullivan County Department of Planning and Codes and any applicable private agreements. If this page conflicts with official ordinances, published guidance, or direction from unincorporated Sullivan County staff, the official sources control.
For legal advice or legal interpretation, consult a licensed attorney.