Building Permits in Oregon
We cover 25 cities in Oregon. Select a city below to see local permit requirements.
Building Codes in Oregon
Building permit requirements in Oregon are enforced at the local level, each city and county building department sets its own rules, fees, and timelines. Most cities in Oregon follow the 2021 IRC, though 3 cities are still on the 2018 edition.
We cover 25 cities in Oregon with 2,560 specific permit rules. That's real, locally researched data, not generic advice. Each city page shows exactly what triggers a permit, what's exempt, estimated fees, and how to apply.
The bottom line: don't assume your city follows the same rules as the one next door. A fence that's exempt in one town might need a full permit two miles away. Always check your specific city.
Permit Fees Across Oregon
Across the 25 cities we cover in Oregon, permit fees range from $8 – $7,500. The average sits around $173 – $721.
Fees vary a lot by city and project type. A simple fence permit might run you $50, while a full room addition could be $2,000+. Most cities calculate fees based on your estimated project value, typically 1–2% of construction cost. Check the specific city page for accurate numbers.
Common Permit Exemptions in Oregon
These are the most common projects that don't require a permit across cities in Oregon. Keep in mind, "exempt from a permit" doesn't mean "exempt from code." You still have to build to code even without a permit.
Fence: Exempt in 49 of our 25 covered cities
Windows and Doors: Exempt in 40 of our 25 covered cities
Patio: Exempt in 26 of our 25 covered cities
Tree Removal: Exempt in 25 of our 25 covered cities
Siding: Exempt in 25 of our 25 covered cities
Exemptions vary by city. Always verify with your local building department before starting work.
Popular Project Guides
Common home improvement projects in Oregon:
Cities in Oregon
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