Skip to main content
CityRuleLookup

Monroe County, FL Fence Regulations: Material Restrictions (2026)

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

Key Facts

Allowed materials
Brick, lumber, stone, metal, plaster, concrete, masonry
Barbed/razor wire
Prohibited except in Industrial (I) and Airport (AD) districts
Chain-link
Allowed for taller 5-6 ft fence exceptions
Attachments
Only 2 driveway lights per fence permitted
Permit
Required for all fences under § 114-13(h)

Summary

In the unincorporated Florida Keys (Monroe County), Land Development Code § 114-13(f) lets fences be built of brick, lumber, stone, metal, plaster, concrete or masonry, but bans barbed wire and razor wire county-wide. The only exception is the Industrial (I) and Airport (AD) zoning districts, where barbed and razor wire fencing remains allowed.

These county ordinances apply to unincorporated areas of Monroe County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

(f)Construction material. Fences may be constructed of natural or manmade materials, including, but not limited to, brick, lumber, stone, metal, plaster, concrete and masonry. Barbed wire and razor wire are prohibited except in the Industrial (I) and Airport (AD) Land Use (Zoning) Districts.

Full Breakdown

Section 114-13(f) gives property owners broad latitude on fence material: brick, lumber, stone, metal, plaster, concrete and masonry are all listed as acceptable, and the list is non-exclusive, so other natural or manmade materials qualify as long as the fence still meets the height, setback and sight-triangle rules of Section 114-13(a) and (b). The one flat prohibition is barbed wire and razor wire, which the county bars everywhere except the Industrial (I) and Airport (AD) Land Use (Zoning) Districts, where security fencing around industrial sites and airport property can still use it.

Chain-link is treated separately: it is one of the materials allowed to reach the taller five- and six-foot allowances in Section 114-13(a)(4), along with a four-foot solid fence topped with a one-foot lattice or louvre, and any non-chain-link material used to reach those taller heights needs Planning Director approval of the construction details. Attachments are otherwise restricted regardless of material: Section 114-13(g) bars anything attached to a fence except up to two driveway lights that stay within two feet of the fence's maximum allowed height and meet the outdoor lighting standards of Chapter 114, Article VI. Every fence, whatever material is chosen, still needs a building permit under Section 114-13(h) and must be kept in good repair under Section 114-13(j).

Violations & Fines

Installing barbed wire or razor wire on a fence outside the Industrial or Airport districts is a code violation subject to the county's building permit and code compliance process, since Section 114-13(f) prohibits it outright in every other zoning district. Building or altering a fence without the required permit under Section 114-13(h) is a separate violation that can trigger a stop-work order and removal or modification of the fence.

Frequently Asked Questions

Can I put up a barbed wire fence around my Keys property?
No, unless the property is zoned Industrial (I) or Airport (AD). Section 114-13(f) prohibits barbed wire and razor wire fencing everywhere else in unincorporated Monroe County, regardless of lot size or use.
What materials can I use for a residential fence?
Section 114-13(f) allows brick, lumber, stone, metal, plaster, concrete, masonry or other natural or manmade materials, as long as the fence still meets the height and sight-triangle limits in Section 114-13(a) and (b). Chain-link and lattice-top designs are specifically listed among the materials that qualify for the taller five- and six-foot height allowances.
Can I hang lights or signs on my fence?
Only lights, and only two per driveway. Section 114-13(g) bars all other attachments to a fence, and any permitted driveway lights cannot exceed two feet above the fence's maximum allowed height and must meet the outdoor lighting rules in Chapter 114, Article VI.

Sources & Official References

Other rules in Monroe County

All Monroe County rules

Florida rules heatmap·Compare Monroe County to another location·View the Florida fence regulations overview

Get notified when Material Restrictions in Monroe County, FL changes

We'll email you the moment we detect a change in the code. No spam, unsubscribe anytime.

We'll never sell or share your email. One-click unsubscribe in every email.

See something wrong?

Help us keep this page accurate. If you notice an error or outdated information, let us know.