Oregon permit requirements
We have read and dated 20 permit rules across 2 jurisdictions in Oregon. They do not all say the same thing: fence thresholds alone run from 7 to 9 feet across 2 of them.
- Jurisdictions
- 2
- Verified rules
- 20
- Permit always required
- 6
- Depends on the project
- 14
Do Oregon jurisdictions agree?
Every row below is a measurement at least two Oregon jurisdictions publish, compared against each other. This is the question a statewide answer cannot settle, because the number that governs your project is the one your own city or county publishes.
| Project | Published threshold | Jurisdictions | Agreement |
|---|---|---|---|
| Fence | 7 to 9 feet | 2 | 2 different numbers |
| Deck | 30 inches | 2 | Same number in all 2 |
| Patio | 200 sq ft | 2 | Same number in all 2 |
| Shed | 200 sq ft | 2 | Same number in all 2 |
3 of 4 comparable measurements are uniform across Oregon; 1 are not. Latest verification 2026-08-16.
Where Oregon jurisdictions split
The verdict for each project across the 2 Oregon jurisdictions we cover. On 2 of 10 projects they do not give the same answer, which is why a statewide answer is not one.
| Project | Permit required | Depends | No permit | Across the state |
|---|---|---|---|---|
| Electrical | 1 | 1 | Answer varies | |
| Plumbing | 1 | 1 | Answer varies | |
| Deck | 2 | Same answer everywhere | ||
| Fence | 2 | Same answer everywhere | ||
| HVAC | 2 | Same answer everywhere | ||
| Patio | 2 | Same answer everywhere | ||
| Pool | 2 | Same answer everywhere | ||
| Roof Replacement | 2 | Same answer everywhere | ||
| Shed | 2 | Same answer everywhere | ||
| Solar | 2 | Same answer everywhere |
Building without a permit in Oregon
Oregon caps the penalty for building without a permit in state statute rather than leaving the number to each city. Under ORS 455.895(2), the Department of Consumer and Business Services or the relevant advisory board may impose a civil penalty on any person who violates the state building code of up to $5,000 for each offense, or up to $1,000 for each day of a continuing offense.
Penalties, the as-built path, and what the statute actually says
What you can build without a permit in Oregon
0 of the 20 answered rules across Oregon need no permit at all and 14 turn on a size or scope condition the jurisdiction publishes, by project and jurisdiction, in each office's own words.
What each Oregon jurisdiction publishes
One line per jurisdiction, written from its own rules rather than from a state summary. This is the section that used to be a list of links, and the states with the fewest jurisdictions to compare are the ones it says the most about.
- Eugene 10 rules
4 of 10 projects always need a permit and 6 turn on the size or scope of the work. Published thresholds include deck at 30 inches and fence at 9 feet.
- Portland 10 rules
2 of 10 projects always need a permit and 8 turn on the size or scope of the work. Only HVAC and solar work always needs one. Published thresholds include fence at 7 feet and deck at 30 inches.