7 rules for unincorporated Collier County, Florida.
Verified from official government sources
In unincorporated Collier County, residential fences may reach 6 feet in side and rear yards. Front-yard fences are capped at 4 feet on interior or waterfront lots of 1 acre or less, but 6 feet on lots larger than 1 acre.
Collier County LDC 5.03.02 C
Residential (RSF, RMF, RT, VR, MH) and TTRVC zoning districts and designated residential components of PUDs shall be subject to the following maximum fence and wall heights: If located within the required front yard: Lots greater than 1 acre: 6 feet. Non-waterfront interior lots 1 acre or less: 4 feet. Waterfront lots 1 acre or less: 4 feet.
Fences and walls are permitted uses in every zoning district, but a Collier County building permit (Fence/Wall application, PRFW) is generally required before installation. Effective July 1, 2026, Florida HB 803 exempts single-family work under $7,500, except in flood hazard areas.
Collier County LDC 5.03.02 A
Fences or walls shall be permitted principal uses in all districts, subject to the restrictions set forth in this section, unless specifically exempted; however, a fence or wall shall not, in any way, constitute a use or structure, which permits, requires, and/or provides for any accessory uses and/or structures.
A fence may sit on the lot line, but no part (including the footing) may cross onto a neighbor's property or right-of-way. The finished side must face the adjoining lot, though the county can waive that if the neighbor already has a fence or hedge.
Collier County LDC 5.03.02 B, F.5
A fence or wall may be located on a lot line, but no fence or wall (including foundation) shall protrude in full or part on adjacent property or right-of-way. Fences and walls shall be constructed to present a finished side of the fence or wall to the adjoining lot or any abutting right-of-way.
Collier County's LDC has no separate retaining-wall ordinance. Walls fall under the same fence and wall height rules of LDC 5.03.02, and a structural retaining wall needs a building permit under the Florida Building Code.
Collier County LDC 5.03.02 F.1.b
Determination of ground level. The height of a fence or wall shall be measured from the ground level at the fence or wall location. The County Manager or designee shall determine the ground level for the purposes of measuring the height when it has been determined that the ground level has been altered for the purposes of increasing the height.
When a nonresidential development abuts or faces a residential district, Collier County requires the nonresidential owner to build a masonry or concrete wall or fence. Contiguous walls must be 6 to 8 feet tall and set back at least 6 feet from the residential district.
Collier County LDC 5.03.02 H.1
Whenever a nonresidential development lies contiguous to or opposite a residentially zoned district, a masonry wall, concrete or pre-fabricated concrete wall and/or fence shall be constructed on the nonresidential property. If located on a contiguous property, then height shall be 6 feet to 8 feet and placement shall be no less than 6 feet from the residentially zoned district.
Barbed wire, razor wire, spire tips, sharp objects, and electrically charged fences are prohibited in unincorporated Collier County. Barbed wire is allowed only in agricultural, commercial, and industrial districts and around public utility systems.
Collier County LDC 5.03.02 F.5.b
Barbed wire, razor wire, spire tips, sharp objects, or electronically charged fences are prohibited, except that the County Manager or designee may allow the use of barbed wire in conjunction with a fence for facilities where a security hazard may exist, such as a utility substation, sewage treatment plant, or similar use.
Single-family homeowners in unincorporated Collier County may use most fence materials, including chain link and wood. The chain-link screening rules of LDC 5.03.02 G expressly do not apply to single-family dwellings; stricter material limits target commercial and architectural-standard sites.
Collier County LDC 5.03.02 G.2
Use of chain link or wire mesh fencing (the requirements of this section are not applicable to single family dwellings): If located adjacent to an arterial or collector road in the urban coastal area, the fence shall be placed no closer than three feet to the edge of the right-of-way or property line.
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