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

Urban & Community Forestry

Urban and Community Forestry

Read More about Urban & Community Forestry
Tree Care and Maintenance

Seasonal Tree Care Tips: Seasonal Tree Care Tips: Fall 2021 Healthy Trees are Defended Trees.The City’s contract arborist prepares tree maintenance and care articles quarterly that contain seasonal tips and advice on caring for your trees. 

Read More about Tree Care and Maintenance
Tree Code Frequently Asked Questions

Find answers to many frequently answered questions.

Read More about Tree Code Frequently Asked Questions
Contact Information

The Permit Center is open to walk-in customers! Also customers can email  to submit an application or call 503-635-0290 and ask for the Planner on Duty if you have questions.

Submitting a Tree Removal or Tree Protection Application

Please email a pdf copy of your tree application to After processing the application, staff will contact you by phone to collect credit card payment for the permit fee. Currently we are accepting payment by credit or debit card only.

Returning Yellow Type II Notice Signs 

After you have received your Type II tree permit, please return your yellow tree signs to our drop off location in the parking garage below City Hall. As you pull into the garage, there is a blue recycling bin on your right side (east) that you can drop your sign in. Thank you for returning your sign for reuse!

Quick Links
Application Forms Pending Type II Permits