Denver property owners must maintain street trees in the right-of-way per DRMC §57-18. Branches over sidewalks must be trimmed to 8 feet clearance; over streets, 13.5 feet clearance.
Under DRMC §57-18, adjoining property owners are responsible for street tree care in the right-of-way (between curb and sidewalk), including pruning, debris cleanup, and maintenance. Branches over sidewalks must be maintained at a minimum clearance of 8 feet; over streets and alleys, 13.5 feet. Any pruning or work on street trees requires a permit from the Denver City Forester. Private trees on one's own property generally do not require a trimming permit unless the property is under construction. Licensed tree service companies must be used for street tree work requiring permits.
Failure to maintain clearances can result in code violations and fines. Unauthorized trimming of city-owned trees is subject to penalties.
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