
Tree Code
The purpose of the Tree Code is to preserve the wooded character of the City of Lake Oswego and to protect trees as a natural resource of the City by:
- Regulating the removal of trees;
- Encouraging and assisting property owner in managing large forested properties; and
- Prescribing preventative protection measures to avoid damage to trees during site development.
- Tree Code fees - Please select current fiscal year, and go to page 51.
News & Announcements
2026 Tree Code Updates
New regulations take effect October 1, 2026
Read More
Changes to Type II Notice and Appeal Process for Clear and Objective Track
New State Law Changes Process for Tree Removal Permits for Residential Development
State law now requires the City to use a different public notice and appeal process for tree removal permits tied to new housing reviewed under the Clear & Objective review track (no variances requested).
Seasonal Tree Care Tips: Seasonal Tree Care Tips:The City’s contract arborist prepares tree maintenance and care articles quarterly that contain seasonal tips and advice on caring for your trees.
__PRESENT
__PRESENT
Read More
Tree Code Frequently Asked Questions
Find answers to many frequently answered questions.
Read More Contact InformationThe Permit Center is open to walk-in customers Monday through Friday, from 8 a.m. to noon, or a Planner is available for tree questions from 8 a.m. to 5 p.m. by emailing [email protected] or calling 503-635-0290 and asking for the Planner on Duty.
Submitting a Tree Removal or Tree Protection Application
Please submit applications either in person or to [email protected]. If emailed, once the application is processed by staff you will be contacted via phone or email to collect the application fees and arrange for sign pick-up (Type II tree removal request only).
Returning Yellow Type II Notice Signs
After you have received your Type II tree removal permit, please return your yellow notice sign to the entry vestibule at the southwest corner of City Hall, 380 A Ave., off the lower parking lot. The vestibules are accessible 24 hours. Thank you for returning your sign for reuse!
View full contact details Upcoming Events No events found. Quick Links Application Forms Pending Type II PermitsFrequently asked questions
All FAQsPrinted from https://www.lakeoswego.city/trees/
