Nassau County, FL Fence Regulations: Material Restrictions (2026)
Key Facts
- Definition
- Energizer powered by battery of 12 volts or less
- Residential restriction
- Barred in exclusively residential-zoned areas
- Enclosure limit
- Cannot enclose residentially used property
- Height rule
- Must stand 2 ft above surrounding fence
- Signage
- Warning signs every 60 feet
- Governing code
- Nassau County Code § 7-6 (FBC § 105.17)
Summary
Nassau County treats a low-voltage electric fence as a permitted alarm system under Section 105.17 of the adopted Florida Building Code rather than ordinary fencing. The fence is barred from areas zoned exclusively for single-family or multi-family residential use and cannot enclose any portion of a property used for residential purposes.
105.17 Streamlined low-voltage alarm system installation permitting. ... (3)A low-voltage electric fence must meet all of the following requirements to be permitted as a low-voltage alarm system project and no further permit shall be required for the low-voltage alarm system project other than as provided in this section: ... (d)A low-voltage electric fence is allowed any area unless the area is zoned exclusively for single-family or multi-family residential use. An area is not considered to be zoned exclusively for single family or multi-family residential use if the area is within more than one zoning category.(e)The low-voltage electric fence shall not enclose the portions of a property which are used for residential purposes.
Full Breakdown
17 of the 8th Edition (2023) Florida Building Code, codified at Nassau County Code § 7-6, which treats a low-voltage electric fence as a category of "low-voltage alarm system project" rather than conventional fencing. The section defines a low-voltage electric fence as a fence structure paired with an energizer powered by a commercial storage battery not exceeding 12 volts that delivers a charge on contact. To qualify as a permitted alarm-system fence at all, the installation must meet several conditions: a nonelectric fence or wall has to completely surround the electrified fence's outside perimeter, and the electric fence itself must stand 2 feet higher than that surrounding nonelectric fence or wall; warning signs identifying the fence must be posted at intervals no greater than 60 feet; and the charge produced on contact cannot exceed the energizer limits set by International Electrotechnical Commission Standard 60335-2-76.
Most importantly for homeowners, the code flatly restricts where an electric fence can go: it is allowed in any area except one zoned exclusively for single-family or multi-family residential use, and even outside those zones it cannot enclose any portion of a property that is used for residential purposes. A contractor installs the fence using a uniform basic permit label purchased from the county rather than a conventional building permit, and must file a Uniform Notice of a Low-Voltage Alarm System Project with the county within 14 days after finishing the work.
17 also bars the county from layering on any additional local requirement for these installations, Nassau County cannot adopt a stricter local ordinance narrowing or expanding this residential restriction.
Violations & Fines
Installing a low-voltage electric fence inside a residentially zoned area, or using one to enclose a residentially used part of a property, does not qualify for the streamlined permit label under Section 105.17 and is enforced as unpermitted alarm-system work; a contractor who fails to file the required Uniform Notice within 14 days of completion is also subject to disciplinary action by the local enforcement agency.
Frequently Asked Questions
Can I install an electric fence around my house in unincorporated Nassau County?
What counts as a low-voltage electric fence under the county code?
Do I need a building permit for an electric fence where it is allowed?
Sources & Official References
Other rules in Nassau County
Florida rules heatmap·Compare Nassau County to another location·View the Florida fence regulations overview
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