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.

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Tree Code Frequently Asked Questions

Find answers to many frequently answered questions.

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Contact Information

Trees@lakeoswego.city or call 503-635-0290 and ask for the Planning on Duty.

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