Lake Oswego Tree Code Proposed Changes

The Lake Oswego Planning Commission will hold a public hearing to consider:

The proposed amendments update tree regulations in the following sections of City Code:

• LOC Chapter 55 – Tree Code

• LOC Chapter 50 – Community Development Code

• LOC Article 42.08 – Sidewalks

• LOC Article 34.10 – Types of Nuisances

The amendments consist of 33 primary amendments (12 substantive and 21 technical), along with 35 additional minor revisions for clarity and consistency. Key provisions include the creation of a clear and objective Type II tree removal review track for housing development, expanded tree mitigation requirements, programmatic permitting options for public agencies and utilities, regulations addressing tree species susceptible to Emerald Ash Borer, and new street tree requirements for residential development.

The Public Hearing Notice and Staff Report for LU 26-0014, along with all additional exhibits and reports as they are added to the record, are available in the City’s Public Records Folder at the following link: https://apps.lakeoswego.city/WebLink/Browse.aspx?id=3307395&repo=CityOfLakeOswego&cr=1

To access the Planning Commission meeting webpage, including the agenda and meeting video (when available), please visit: https://www.ci.oswego.or.us/boc_pc/planning-commission-43

Instructions on how to provide comment or participate in the public hearing are included in the notice available within the Public Records Folder.

This notice was sent to all Neighborhood Association Chairs by

Cristina Siquina Calderón, Administrative Support | Planning & Building Services

Information from the City's web page about Tree Code Amendments

Project Background / Summary: 

Guided by the recommendations in the City’s Urban and Community Forestry Plan, the Tree Regulation Amendments Project updates the City’s tree regulations to support long-term urban forest health, improving clarity and effectiveness of regulations, and assures compliance with state law. Work began in May 2025 and is expected to be completed in Summer 2026.

A 12-member Tree Task Force, appointed by the City Council, is providing input throughout the process. The project also includes public outreach and work sessions with the boards and commissions and City Council.

Additional project information, meeting materials, and past work sessions are available on the Planning Project webpage:https://www.ci.oswego.or.us/planning/pp-24-0006-tree-regulation-amendments