Aurora, CO Landscaping Rules: Tree Trimming (2026)

Under City Code Sec. 142-74(a), every owner or occupant of a lot or open area in Aurora, Colorado must keep trees on that property trimmed to a clear height of 13 feet 6 inches above any public street, alley or highway, and 8 feet above any public sidewalk. Roots interfering with a sidewalk or city utility facility must also be corrected or removed (Sec. 142-74(b)), and any unsafe tree must be corrected or removed (Sec. 142-74(c)). City-installed trees in the right-of-way are maintained by the City itself, not the adjacent owner. If the city manager's designee gives notice under Sec. 142-78 that a tree violates these clearance standards, the owner has seven days to comply before the City can enter the property and correct, cut or remove the offending growth, billing the cost back to the owner.