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.

News & Announcements

Tree Care and Maintenance

The City’s contract arborist prepares tree maintenance and care articles quarterly that contains seasonal tips and advice on caring for your trees. The topic for Fall 2019 is Insects and Diseases. More seasonal tree care topics are also available in the Tree Care and Maintenance Archives link below the article.

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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 Planner on Duty.

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