Tree removal permit rules in Boulder, CO — sometimes called heritage tree, protected tree, or street tree ordinances — list which trees require a permit before you can cut them down.
Boulder regulates tree removal on private property through permits and size thresholds. Street trees are city-managed and cannot be removed by residents.
Boulder tree removal regulations protect the urban canopy by requiring permits for trees above a size threshold, typically 6 to 12 inches trunk diameter measured at breast height (4.5 feet). Applications may require an arborist report. Street trees in the right-of-way are managed exclusively by Boulder public works or urban forestry. Dead, dying, or hazardous trees may qualify for expedited removal. Replacement planting is usually required. Colorado state law may preempt local tree ordinances in certain circumstances.
Unauthorized removal: $500 to $10,000 per tree. Replacement planting required. Street tree damage: city restitution costs.
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See how Boulder's tree removal & heritage trees rules stack up against other locations.
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