Under LMC 15.05.100, fences made of barbed wire, tin, or sheet metal - or partly of those materials - are prohibited. Electric fences are also prohibited, except for low-voltage commercially available 'invisible fences' used to contain domestic pets. Chain-link and woven-wire fencing is banned in the front yard of residential lots (except temporary construction fencing).
The Longmont Fence Building Guide, summarizing LMC 15.05.100, explicitly states: 'Fences constructed of barbed wire, tin or sheet metal, or partly of any of those materials, are prohibited.' For electric fencing: 'Except for low-voltage, commercially available invisible fences used to contain domestic pets, it is a violation of this development code to construct or maintain any fence capable of being charged with electricity.' Chain-link or other woven-wire fencing is prohibited in the front yard of a residential zoning district, except for temporary chain-link/woven-wire fences used during construction or as replacement of an existing non-conforming fence. Razor wire and concertina wire are likewise prohibited as a form of barbed wire. These restrictions are independent of height limits.
Installing prohibited barbed wire, tin, sheet metal, razor wire, or non-invisible electric fencing is a development code violation. Code enforcement can require removal and may issue municipal citations.
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