Thornton requires permits to remove trees above a certain size on private property. Protected species and street trees have additional restrictions.
Thornton tree protection ordinance requires a permit to remove trees exceeding a specified trunk diameter, typically 6 to 12 inches measured at 4.5 feet above grade (DBH). Applications require an arborist assessment for larger trees. Street trees and right-of-way trees are managed by Thornton public works and cannot be removed by residents. Dead, diseased, or hazardous trees may qualify for expedited permits. Unauthorized removal of protected trees results in significant fines and replacement requirements.
Unauthorized removal: $500 to $10,000 per tree depending on size and species. Replacement planting required at 2:1 or 3:1 ratio.
Thornton, CO
Thornton prohibits storing abandoned, inoperable, or unregistered vehicles on public streets or visible on private property. Vehicles may be tagged and towed...
Thornton, CO
Thornton regulates electric vehicle charging infrastructure for residential and commercial properties. Building codes may require EV-ready parking in new con...
Thornton, CO
Thornton regulates overnight parking on public streets. Many areas restrict parking between certain hours or require permits for overnight street parking.
Thornton, CO
Thornton requires pool barriers meeting safety codes to prevent drowning. Fences must be at least 4 to 5 feet tall with self-closing, self-latching gates.
Thornton, CO
Thornton requires permits for retaining walls above a certain height, typically 4 feet. Engineering review may be required for taller walls.
Thornton, CO
Thornton restricts or prohibits intentional feeding of wildlife including deer, coyotes, and bears. Feeding wildlife creates public safety hazards and nuisan...
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