Adding Windows or Replacing Windows
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Source: Adding Windows or Replacing Windows ↗ Last modified: Sun, 19 Apr 2026 19:35:33 GMT
Label: Guide
Do you need a window permit?
Note: Land Use Reviews may be required if the property is in a design zone or historic zone.
Adding a new window where there wasn't one before
Permit required
Replacing and widening a window
Permit required
Replacing a window with no change to the header size or location, and no reduction of the clear opening size
Not required
Installing or removing storm windows
Not required
Who can do the work
You can hire a licensed contractor to get the permits and complete the work. In most cases, you can apply for permits and do the work on your home.
Commercial buildings and window permits
Window requirements for multi-unit/commercial properties can be found in the Oregon Structural Specialty Code ↗.