Jefferson County, CO Landscaping Rules: Tree Removal & Heritage Trees (2026)
Tree removal permit rules in Jefferson County, CO, sometimes called heritage tree, protected tree, or street tree ordinances, list which trees require a permit before you can cut them down.
Key Facts
- General tree-removal permit
- Not required (unincorporated)
- Key county permit
- Defensible Space Permit (WUI)
- Triggers
- Build, re-side, addition, STR
- Inspection
- County wildfire mitigation specialist
- City rules
- May require their own permits
Summary
Unincorporated Jefferson County has no general 'tree removal permit' for cutting a tree on your own property. In the Wildland-Urban Interface, wildfire mitigation - including thinning and removing trees - is tied to a Defensible Space Permit required for building, re-siding, additions, new development, and short-term-rental approval.
The County requires a Defensible Space Permit (i.e. wildfire mitigation work) on properties located within the Wildland Urban Interface (WUI) District in the following instances: New structures or replacements of structures; Re-siding permits; Additions to existing structures; Prior to approval of a Short-Term Rental application; New development projects.
Full Breakdown
Jefferson County does not require a stand-alone permit to remove a healthy tree on private unincorporated land, unlike cities with protected-tree ordinances. The relevant county permit is the Defensible Space Permit: 'The County requires a Defensible Space Permit (i.e. wildfire mitigation work) on properties located within the Wildland Urban Interface (WUI) District' for new or replacement structures, re-siding, additions, new development, and prior to approval of a short-term-rental application. Mitigation work, which often involves tree thinning and removal per Colorado State Forest Service standards, 'must be inspected by a County Approved Wildfire Mitigation Specialist.' Removal within incorporated cities follows each city's own tree-protection code.
Violations & Fines
No fine for removing your own tree; in the WUI, related building/re-side/addition/STR permits are withheld until defensible-space mitigation is completed and passes specialist inspection.
Frequently Asked Questions
Do I need a permit to cut down a tree?
What triggers a Defensible Space Permit?
Sources & Official References
Other rules in Jefferson County
Compare Jefferson County to another location·View the Colorado landscaping rules overview
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