Longmont does not use the term 'heritage tree.' Instead, LMC 13.24.110 (Tree Protection) protects 'healthy, high-value' trees on City property and in the public right-of-way. The City Forester appraises any healthy high-value tree slated for removal and requires equivalent mitigation. Longmont is a designated Tree City USA member.
Per the City's Apply for a Permit page and Forestry FAQs, the regulatory anchor is LMC 13.24.110 — Tree Protection. There is no separate 'heritage tree' registry, age threshold, or species list. Instead, any tree the City Forester determines is both healthy and 'high value' (using the International Society of Arboriculture trunk-formula appraisal method) is protected when located on City property or in the public ROW. Removal requires (a) a Forestry permit, (b) an ISA-based appraisal, and (c) equivalent mitigation — replacement trees of equivalent appraised value or a payment in lieu. Private-property trees are not subject to the high-value protection scheme unless and until they are in the ROW or pose a nuisance. Longmont is a Tree City USA participant and manages roughly 2,800 City-maintained trees plus oversight of an estimated 43,000 ash trees citywide under its EAB program.
Removing, topping or significantly damaging a healthy high-value City or ROW tree without a permit triggers an ISA appraisal and a mitigation charge under LMC 13.24.110, payable as in-kind replacement trees or cash in lieu. Damage during construction without protection fencing/measures can result in similar appraisal charges against the contractor.
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