Longmont, CO Fence Regulations: Height Limits (2026)

Longmont Municipal Code § 15.05.100.G sets the maximum height for fences and walls at six feet for residential property and eight feet for mixed-use and nonresidential properties, and for residential properties whose side or rear yards abut arterial streets. Height is measured as the vertical distance from finished grade on the highest side of the fence to the top of the fence or wall. The Director of Planning and Development Services may approve a taller fence on a mixed-use or nonresidential property if needed for adequate screening or buffering. Front-yard fences face a separate 42-inch limit under § 15.05.100.E, and perimeter fences near pocket parks along arterial or collector streets are capped at 48 inches under § 15.05.100.D.3.