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Fence Regulations in Longmont, CO (2026)

3 verified fence regulations for Longmont, Colorado, sourced directly from the municipal code and official government pages.

Verified from official government sources

Height Limits

Longmont caps fence and wall height at six feet on residential property and eight feet on mixed-use, nonresidential, and arterial-abutting residential lots, measured from finished grade to the fence top.

Longmont Fence Height Limits

Some Restrictions

Longmont Municipal Code § 15.05.100.G

G.Height limits. Except as otherwise stated or limited in this section or chapter, the maximum height for fences and walls shall be six feet for fences/walls located on residential property and eight feet for mixed-use and nonresidential properties and residential properties with side and rear yards abutting arterial streets, unless the director determines that a higher fence or wall is necessa...

Fence Permit Requirements

Longmont requires a building permit before any fence or wall goes up: Municipal Code § 15.05.100.C bars construction until a plan has been submitted and a permit issued through the city's standard building-permit process. Applications go to the planning and development services department and are reviewed and issued by the chief building official under § 15.02.120.

Longmont Fence and Wall Permit Requirement

Some Restrictions

Longmont Municipal Code § 15.05.100.C

C.Building permit required. No fence or wall shall be constructed until a plan has been presented and a permit has been issued in the manner provided for the issuance of building permits. See section 15.02.120 for review and administrative procedures for building and construction permits.

Material Restrictions

Longmont bans barbed wire, tin or sheet metal, and electrically charged fences citywide, with a narrow industrial-district exception for barbed wire topping woven-wire fences.

Longmont Prohibited Fence Materials

Significant Restrictions

Longmont Municipal Code § 15.05.100.B.2 & B.3

B.2.Barbed wire and metal fences. Fences constructed of barbed wire, tin or sheet metal, or partly of any of those materials, are prohibited, except that in industrial districts, barbed wire shall be allowed as a topping for woven-wire industrial-type fences only if the director determines that extraordinary and unusual circumstances exist...B.3.Electric fences. Except for low-voltage, commerci...

Looking for Boulder County county-wide rules?

County ordinances apply to unincorporated areas and may supplement Longmont city rules.

Fence Regulations in Boulder County