Do I need a deck permit in Oregon?

In Oregon it depends on the size of the job. Permits are issued locally, so the answer comes from your Oregon city or county rather than a single statewide rule. Of the 2 Oregon jurisdictions we have verified for deck work, 0 require a permit outright, 2 depend on the size or scope of the job, and 0 require none.

Is there a deck permit exemption in Oregon?

2 of the 2 Oregon jurisdictions we cover set a threshold rather than a flat rule, so the same job can be exempt in one Oregon county and permitted in the next. The table above lists each Oregon jurisdiction's published threshold in its own words, with the source and the date we verified it.

Oregon

Do you need a deck permit in Oregon?

By Mario Bailey Last checked 16 Aug 2026

Always required: 0; of 2 jurisdictions
Conditional: 2; depends on size or scope
Not required: 0; exempt outright

Deck Permit rules nationwide, beyond Oregon.

Framing a backyard deck: fresh lumber and a nail gun on new decking

Requirements and size thresholds for deck permits vary by locality. The table below compares what each Oregon county or city requires. Always confirm with the local office before starting.

Comparing states? See deck permit rules across every locality we cover.

The application steps and inspection sequence for deck permits come from the model code rather than from Oregon law, so they read the same wherever you build. We keep that walkthrough in one place: how a deck permit application and its inspections work, start to finish. What changes between Oregon jurisdictions is below: who requires a permit, what they charge, and which office you file with.

Swipe sideways to see thresholds and confidence.

Locality	Permit required?	Typical threshold	Confidence
Eugene	Conditional	height of the deck or porch floor above adjacent grade, measured at any point within 3 feet horizontally of the floor, with a covered porch also needing to stay at least 3 feet from property lines	Confirmed on official page
Portland	Conditional	height of the deck walking surface above adjacent grade, taken 36 inches out from the edge of the deck	Confirmed on official page
No localities match your filter.

Common questions about deck permits in Oregon

Do I need a deck permit in Oregon?: In Oregon it depends on the size of the job. Permits are issued locally, so the answer comes from your Oregon city or county rather than a single statewide rule. Of the 2 Oregon jurisdictions we have verified for deck work, 0 require a permit outright, 2 depend on the size or scope of the job, and 0 require none.
Is there a deck permit exemption in Oregon?: 2 of the 2 Oregon jurisdictions we cover set a threshold rather than a flat rule, so the same job can be exempt in one Oregon county and permitted in the next. The table above lists each Oregon jurisdiction's published threshold in its own words, with the source and the date we verified it.

Do you need a deck permit in Oregon?

Common questions about deck permits in Oregon

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