Tigard Tree Removal Permit & Ordinance Guide
Washington County, Oregon
Protected Tree Definition
Significant tree: 6 inches DBH or greater on development sites. Heritage trees designated separately. Urban Forestry Program manages street trees regardless of size.
Heritage / Landmark Trees
Heritage Tree Program recognizes trees for exceptional size, species, age, or historical significance.
Permit Requirements
Urban Forestry Manager review required for tree removal on development sites. Tree preservation plan required with land use applications.
Who can apply: Property owner or authorized agent with arborist report
Required Report Sections
Tree inventory with DBH, species, condition, retention plan, mitigation calculation
Replacement Requirements
Inch-for-inch caliper mitigation or tree unit replacement
On-site replacement preferred; fee-in-lieu to Urban Forestry Fund when infeasible.
Fees & Fines
Processing Time
4-6 weeks
Required Certifications
ISA Certified Arborist
Municipal Code
Tigard Community Development Code Chapter 18.790 (Tree Removal)
View full ordinanceContact
Community Development Department / Urban Forestry
(503) 718-2421
Nearby Cities in Washington County
Other Oregon cities
Compare with nearby cities
Data last verified: April 2026. This information is provided as a reference. Always verify requirements directly with Tigard before submitting permits or reports.
Ready to apply? How to apply for a permit in Tigard →
See Oregon replacement obligations compared: How Tigard's replacement ratio ranks in Oregon →
See Oregon heritage criteria compared: How Tigard's heritage designation ranks in Oregon →
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