FENCE RULES – BOONE (COUNTY), KENTUCKY

OVERVIEW

Residential fences are permitted on private property within Boone County, subject to local regulations.

This page applies to properties in the unincorporated areas of Boone County; incorporated municipalities such as City of Florence, City of Union, and City of Walton may regulate fences under their own ordinances.

Local fence rules appear primarily in the Boone County Zoning Regulations, especially Section 3655, Fences, together with related zoning provisions for accessory structures, zoning permits, sight triangles, historic overlays, design review, drainage, subdivision plats, right-of-way encroachments, floodplain development, and agricultural-interface fencing.

This page focuses on typical single-family residential fencing. If the jurisdiction’s adopted materials do not state a specific limit or requirement, this page notes that the code does not specify one.

Compiled From Boone County Zoning Regulations, Boone County Subdivision Regulations, Boone County Code of Ordinances Chapters 97, 150, and 151, Boone County Building Department permit guidance, Boone County Public Works permit guidance, Boone County Code Enforcement & Safety guidance, and Boone County Planning Commission historic and design-review materials as of June 2026.

GOVERNANCE

Boone County Planning Commission administers the Boone County Zoning Regulations and Subdivision Regulations through the Zoning Administrator, Planning Commission staff, and related review procedures.

Boone County does not use a single standalone residential fence ordinance. Local fence rules are found in the zoning regulations, building-permit guidance, right-of-way encroachment policy, flood damage prevention code, subdivision regulations, and historic/design-review materials.

The Boone County Building Department administers building-permit requirements. The Boone County Planning Commission administers zoning permits, zoning compliance, subdivision review, historic preservation review, and design-review applications. Boone County Public Works administers county right-of-way encroachment permits. The Floodplain Administrator administers floodplain development permitting under Chapter 151.

Code Enforcement & Safety oversees code enforcement for neighborhoods and communities in unincorporated Boone County. Zoning and subdivision concerns are handled through the Boone County Planning Commission.

PERMIT AND APPROVAL REQUIREMENTS

• Zoning Review: The Boone County Zoning Regulations require a Zoning Permit before a building or other structure is erected and for accessory structures unless site-plan review applies. Fences are regulated as accessory uses and accessory structures for zoning-location purposes, and local fence compliance is controlled by Section 3655.

• Building Permit: Boone County Building Department guidance identifies fences at the 7-foot level as building-permit-exempt work. This is a building-permit exemption only. It does not remove zoning, placement, height, right-of-way, easement, floodplain, historic, design-review, subdivision, drainage, or private-restriction requirements.

• Residential Height Interaction: The local zoning maximum for ordinary residential fences is 6 feet in side and rear yards and 4 feet in front yards or corner side yards where those locations are allowed. Standard zoning-compliant residential fences fall below the local building-permit exemption threshold.

• Separate Fence Permit: Boone County does not publish a separate fence-only permit form in the official source materials reviewed for this page. Fence review is handled through zoning compliance, the zoning-permit framework when applicable, and any separate right-of-way, floodplain, historic, design-review, subdivision, or private restrictions that apply to the property.

• Right-of-Way Permit: Fence work in county-owned right-of-way requires an encroachment permit. The fence rule also states that no fence may be located within a public right-of-way.

• Floodplain Permit: A development permit is required before construction or other development begins within a special flood hazard area. This review is separate from zoning and building-permit review.

• Historic Approval: If a property is in a Historic Overlay District or is a Historic Landmark, a Certificate of Appropriateness may apply to alterations, additions, demolition, or work affecting a building, structure, or site. The Boone County Certificate of Appropriateness application includes Fence as a work category.

• Design Review: Where a project is subject to Boone County design review, the Design Review application includes fences, walls, landscaped berms, retaining walls, height, and utilities among the design-plan items that may be reviewed.

• Retaining Walls: Retaining walls are not treated as ordinary fences. Boone County’s zoning rules require a zoning permit or minor site plan for some retaining walls 4 feet or less, and a major site plan or grading plan may be required for walls over 4 feet or walls that affect grading, drainage, structural grade support, or property-damage risk.

FENCE PLACEMENT RULES

• Side and Rear Yards: Standard residential fences are required to be located in the side yard or rear yard, unless the front-yard or corner-side-yard rules in Section 3655 allow a fence in those locations.

• 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 5-foot accessory-structure setback does not apply to fences located in side or rear yards.

• Front Yard and Corner Side Yard: In unincorporated Boone County, fences may be located in the front yard or corner side yard only if they meet Section 3655’s front/corner standards: maximum 4 feet high, decorative design, 50% opacity or less, no utilitarian style, no public right-of-way location, and no obstruction of the sight triangle.

• Public Right-of-Way: No fence may be located within a public right-of-way. Boone County also identifies fences, signs, basketball goals, and landscaping too close to the road as potential visibility and safety concerns when placed in or near county right-of-way.

• Sight Triangles: No fence may be located where it obstructs the sight triangle for a motorist or pedestrian. Landscaping materials that impair visibility are also prohibited in sight triangles.

• Easements and Plats: Recorded subdivision plats and easements may limit where a fence can be placed. The Subdivision Regulations require public and private easements to be identified on plats, and drainage easements must be read according to their recorded purpose and terms.

• Drainage Easements: Surface-drainage easements shown on plats may not contain structures, planting, fill material, or other material that obstructs, retards, or changes the direction of water flow through the drainage channel.

• Subdivision Development: When fencing is required as part of a subdivision improvement plan, Section 403.A fencing or Section 403.B landscape treatment must be shown with explanatory notes or details on the improvement plan.

• Agricultural Interface in New Development: Certain new residential developments, other than those in the RSE district, that are subject to major subdivision review or site-plan review must provide a minimum 4-foot fence along the common boundary with an active agricultural operation or adjoining A-1 or A-2 agricultural property meeting the agricultural-operation standard.

• Gate Swing: The code does not specify a separate gate-swing standard for standard residential fences.

• Utility Safety: Kentucky law requires notice through Kentucky 811 before excavation where Kentucky’s underground utility damage-prevention law applies. For fence projects that involve digging, including fence post holes, notice must be given not less than two full working days and not more than 10 full working days before excavation begins, unless a different future start date is allowed by law. Kentucky locate requests are valid for 21 calendar days from the initial request. Kentucky law also includes exemptions, including certain agricultural tilling and certain nonmechanized excavation on private property where no operator right-of-way or easement is encroached.

FENCE HEIGHT AND VISIBILITY RULES

• Residential Districts and GR-R District: The maximum fence height in residential districts and the GR-R district is 6 feet.

• Side and Rear Yard Rule: The 6-foot residential fence height limit applies to fences located in side and rear yards.

• Front Yard and Corner Side Yard Rule: In unincorporated Boone County, front-yard and corner-side-yard fences are limited to 4 feet in height and must meet the decorative-design, opacity, right-of-way, and sight-triangle standards in Section 3655.

• Sight Triangle Rule: Fences may not be placed where they obstruct the sight triangle for a motorist or pedestrian. Landscaping materials that impair motorist visibility may not be placed in sight triangles, and plant materials taller than 3.5 feet above the adjoining driving surface at maturity are not permitted within sight triangles.

• Agricultural-Purpose Fences: Fences for agricultural purposes are exempt from the requirements of Section 3655. That exemption is local zoning language for agricultural-purpose fencing and does not create a separate standard residential fence height limit.

• Required Agricultural-Interface Fence: For qualifying new residential developments adjoining an active agricultural operation or qualifying A-1 or A-2 agricultural property, the required boundary fence must be at least 4 feet high unless waived or altered through the agreement process described in the zoning regulations.

• Building-Permit Threshold: The 7-foot figure in Boone County building-permit guidance is a building-permit exemption threshold. It is not the local residential zoning height limit for ordinary yard fences.

MATERIAL AND CONSTRUCTION LIMITS

• Finished Side: All fences must have the finished side facing out.

• Structural Supports: Structural supports may not be visible from adjoining properties or rights-of-way unless the fence is designed so that those supports are visible from both sides.

• Durable Materials: All fences must be constructed of durable materials and installed to withstand the elements.

• Maintenance: Fences must be maintained in good repair at all times.

• Prohibited Residential Materials: For residential uses in residential districts, barbed wire, stock wire, chicken wire, electric fences, and similar fence types are not permitted.

• Front Yard and Corner Side Yard Materials: In front yards and corner side yards where fences are allowed in unincorporated Boone County, the fence must be decorative, such as wrought iron, architectural steel, picket, wood or vinyl picket, or post-and-rail, and must have 50% opacity or less.

• Front Yard and Corner Side Yard Prohibited Styles: Utilitarian styles are not permitted in front yards or corner side yards where Section 3655 applies. Prohibited examples include chain link with or without vinyl coating, barbed wire, stock wire, chicken wire, chains on posts, and similar styles.

• Agricultural-Purpose Fences: Fences for agricultural purposes are exempt from Section 3655’s fence requirements.

• Agricultural-Interface Fence Materials: The required fence between certain new residential developments and active agricultural operations must be at least stock wire, although chain link, rail fencing with wire inserts, picket fencing, solid privacy fencing, and comparable materials are also acceptable for that specific required boundary-fence context.

PRIVATE RESTRICTIONS

Private restrictions operate independently from Boone County zoning and building rules. These may include HOA covenants, subdivision restrictions, deed restrictions, private easements, architectural-review covenants, recorded land-use restrictions, private boundary agreements, agricultural agreements, or recorded maintenance obligations.

Boone County zoning states that where zoning regulations impose a greater restriction than another ordinance, rule, code, permit, regulation, easement, covenant, deed restriction, or agreement, the zoning regulations govern. A private restriction may still be more restrictive than Boone County’s public fence rules.

Boone County does not publish that it enforces private HOA covenants or private architectural-review rules as ordinary county fence-code enforcement.

REVIEW AND ENFORCEMENT CONTEXT

Fence issues are typically reviewed during permit or approval review when required, and through complaint-based code enforcement. Examples include:

• Zoning Compliance: Review of fence location, height, front-yard or corner-side-yard eligibility, opacity, decorative design, finished-side orientation, material restrictions, and agricultural-purpose exemptions under Section 3655.

• Building-Permit Exemption: Review of whether the fence falls within Boone County’s building-permit exemption for fences at the 7-foot level, while preserving separate zoning, right-of-way, floodplain, historic, design-review, easement, and private-restriction layers.

• Right-of-Way Conflicts: Review of fences located in or near county-owned rights-of-way, including situations where a fence may block views or create a road-safety concern.

• Sight-Triangle Conflicts: Review of fences, landscaping, or other obstructions that impair sight distance for motorists or pedestrians.

• Floodplain Review: Review of fence work that qualifies as construction or development within a special flood hazard area.

• Drainage and Easement Conflicts: Review of fences or related site work that may obstruct drainage easements, stormwater flow, utility areas, or recorded easement terms.

• Historic Review: Review of fence work affecting a property in a Historic Overlay District or at a Historic Landmark, including Certificate of Appropriateness review where applicable.

• Design Review: Review of fences, walls, landscaped berms, retaining walls, height, utilities, and related design-plan items where the property or project is subject to Boone County design review.

• Subdivision Review: Review of fencing shown on improvement plans, final plats, drainage easements, public improvements, common areas, and HOA-maintained improvements.

• Agricultural-Interface Review: Review of the required 4-foot boundary fence for certain new residential developments adjoining active agricultural operations or qualifying A-1 or A-2 agricultural land.

USING THIS INFORMATION

This page provides general orientation on how residential fence rules are structured and applied within Boone County, based on publicly available source materials reviewed as of June 2026.

In addition to local fence rules, certain Kentucky laws apply statewide. See Statewide Fence Laws in Kentucky.

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, floodplain status, stormwater or drainage requirements, road or highway encroachment, historic district status, rural or agricultural context, livestock or farm-boundary context, pool-barrier use, and private restrictions such as HOA covenants, deed restrictions, private agreements, or agricultural conservation easements. Before purchasing materials or beginning construction, confirm current requirements and any site-specific limitations with Boone County Planning Commission and any applicable private agreements. If this page conflicts with official ordinances, published guidance, or direction from Boone County staff, the official sources control. For legal advice or legal interpretation, consult a licensed attorney.