Denver, CO Permit Requirements: Fence Permits (2026)

Denver's Community Planning and Development (CPD) does not require building permits for most standard residential fences. Fences 6 feet or under in side and rear yards and 4 feet or under in front yards are permit-exempt. However, several fence types do require permits: masonry or concrete walls regardless of height, retaining walls over 4 feet, fences in the public right-of-way, and fences in designated historic districts that may need Landmark Preservation review. Standard materials including wood, vinyl, chain-link, and composite do not require structural permits. Corner lot fences must maintain sight triangles as specified by the Denver Zoning Code. Fences should be built entirely on the owner's property. Property line fences built cooperatively by neighbors are permitted but require written agreement. Denver's zoning code specifies that fences cannot be built in public utility easements without written permission from the utility provider. If a fence project includes grade changes or terracing, the retaining wall portions may require separate permits and engineering.