2026 Oswego Lake Draw-Down

Lake Oswego Corporation (Lake Corp) will begin the lake draw-down on October 1, 2026. If you are planning work on lake structures while water levels are lowered, now is the time to prepare building plans and permit applications.

To avoid delays, submit permit applications to both the City and Lake Corp as early as possible.

Common draw-down projects include:

  • Dock repairs
  • Boathouses
  • Utility repairs

Important deadline:
Submit building permit applications no later than August 15, 2026. Applications received after this date may not be approved in time to complete work during the draw-down period.

Review timeline:

  • The first review by City staff takes around 4 weeks
  • If plans need corrections to meet Code standards, or if the application is not complete, it may take more time to get an approved permit
  • Lake Corp plans to refill with rainwater beginning on January 1, 2027, so projects should be completed by this date

Building Permit Application Checklist 

Contact City staff early in your planning process to make sure the project meets standards and does not conflict with existing infrastructure or regulations.

Planner on Duty
(503) 635-0290
planning@lakeoswego.city

Planning Permit Review, Jessica Morey-Collins
(503)635-0297
jmorey-collins@lakeoswego.city

Floodplain Administrator, Jamie Roberts
(503)697-6511
jroberts@lakeoswego.city
*Contact Jamie with Engineering questions including floodplain, public utilities, and erosion control

Engineer on Duty
(503) 635-0270

Building Permits
(503) 635-0390
permits@lakeoswego.city
Permit applications: https://www.ci.oswego.or.us/building/permit-applications  

Lake Corp
Marina Office: 503-636-1422
Assistant General Manager, Gabe Winfrey: gabe.winfrey@lakecorp.com
https://lakecorp.com/
Attachments
Other Materials:
Building Permit Application Checklist