Wilsonville Tree Removal Permit & Ordinance Guide
Clackamas County, Oregon
Protected Tree Definition
Significant tree: 6 inches DBH or greater on development sites. Tree preservation required during land use and site plan review.
Permit Requirements
Tree Preservation Plan required during land use review. Tree removal permits for significant trees outside approved development activity.
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 tree fund when infeasible.
Fees & Fines
Processing Time
4-6 weeks
Required Certifications
ISA Certified Arborist
Municipal Code
Wilsonville Development Code Section 4.610 (Tree Protection)
View full ordinanceContact
Planning Division
(503) 682-4960
Nearby Cities in Clackamas 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 Wilsonville before submitting permits or reports.
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