Do I Need a Permit to Build a Deck in Portland, OR?

Interactive check

Check your deck details

Client-side only. No runtime backend required.

Fees

Estimated city fees

Baseline for a simple permitted deck: $200–$600 estimated city fees for a permitted residential deck (plus 12% Oregon state surcharge; varies by construction valuation)

Fee	Amount	Notes
Building permit fee	$200–$600 (estimated, based on construction valuation)	Portland Bureau of Development Services (BDS) calculates permit fees using a valuation-based sliding scale. Verify the current rate on the official BDS fee schedule at portland.gov/bds/fee-schedule before submitting.
Plan review fee	65% of the building permit fee (estimated)	Portland BDS assesses a plan review fee equal to approximately 65% of the building permit fee for projects requiring plan check. Simple residential decks may qualify for the Express Permit track, which reduces review time and may streamline fees.
State surcharge	12% of the building permit fee	Oregon imposes a state surcharge of 12% of the local permit fee, collected by Portland BDS at the time of permit issuance. This amount is forwarded to the Oregon Building Codes Division (BCD).
Inspection fee	Included	Required inspections (footing/foundation, framing, final) are covered under the permit. Re-inspection fees apply if work fails or is not ready when the inspector arrives.

Documents

Required documents

Completed building permit application submitted through Portland BDS's online permitting portal (aca.portland.gov).
Site plan drawn to scale showing property lines, setbacks, easements, existing structures, and the proposed deck location and dimensions.
Construction drawings including plan view, elevations, framing layout, footing sizes, and overall dimensions.
Structural details for footings, posts, beams, joists, connectors, guardrails, and stair configuration where applicable.
Ledger attachment detail and flashing specifications if the deck is attached to the dwelling.
Property survey or plot plan if the deck is near a setback line, easement, or utility corridor.
Owner authorization or contractor license documentation (Oregon CCB license number required) if a contractor applies on the owner's behalf.
Any required HOA approval documentation per your subdivision restrictions.

Timeline

Typical timing

Plan review: 5–15 business days (standard); Express Permit track available for eligible simple residential decks
Total cycle: 3–8 weeks from application to final inspection

Portland BDS seasonal workload, resubmittals for plan corrections, and inspection scheduling can push the timeline toward the high end. The Express Permit track for straightforward residential decks can significantly reduce review time.

Process

How the permit process works

Determine whether your deck requires a permit Check whether the deck is attached to the house, or whether it exceeds 30 inches above grade at any point or 200 square feet as a freestanding structure. If any condition applies, a building permit is required through Portland Bureau of Development Services (BDS).
Prepare plans and supporting documents Draw up a site plan and construction drawings showing footings, posts, beam sizes, joist spacing, decking layout, guardrail details, and stair layout if applicable. Portland plan reviewers reference the Oregon Residential Specialty Code (ORSC), which is based on the 2021 IRC with Oregon amendments, so standard IRC-compliant structural details are accepted.
Submit through Portland BDS's online permit portal Create or log in to an account at aca.portland.gov, select the appropriate residential building permit type, upload your documents, and submit. Simple residential deck projects may qualify for the Express Permit track, which offers faster review. In-person service is available at Portland BDS, 1900 SW 4th Ave., Suite 5000, Portland, OR 97201.
Respond to plan review comments Portland BDS reviewers evaluate the submittal against the Oregon Residential Specialty Code (ORSC) and local Portland Zoning Code amendments. If corrections are requested, update the drawings and resubmit through the portal.
Receive approval and pay remaining fees Once the permit is approved and all fees are paid in full (including the 12% Oregon state surcharge), print or save the issued permit. Keep the permit card or approval document accessible at the job site during all phases of construction.
Schedule required inspections Request inspections through aca.portland.gov or by calling the Portland BDS inspection request line as construction progresses. A typical deck requires a footing or foundation inspection before pouring concrete, a framing inspection before covering structural members, and a final inspection.
Pass final inspection and close out the permit After the inspector signs off on the final inspection, the permit is closed and the completed deck becomes part of the official city record. This protects you during home sales, insurance claims, and future permitting.

Code basis

What Austin reviews against

Oregon Residential Specialty Code (ORSC) as adopted by the State of Oregon and enforced by the City of Portland Bureau of Development Services, with local Portland Zoning Code amendments. The ORSC is based on the 2021 International Residential Code (IRC) with Oregon-specific modifications under OAR 918-480-0000 et seq.

Residential permit page AB+C portal

If you skip the permit

What can go wrong

Portland BDS can issue a stop-work order if unpermitted construction is discovered.
The city may require the deck to be removed or structurally opened for inspection at the owner's expense.
Civil penalties and daily fines can accrue under the Portland City Code until the violation is resolved.
Homeowner's insurance may deny claims for damage caused by or related to unpermitted structures.
Unpermitted work flagged during a home sale can delay or derail a transaction, and retroactive permitting (a “after-the-fact” permit) is significantly more expensive and disruptive than doing it upfront.
Unpermitted decks may create liability exposure if a guest is injured on a structure not inspected for code compliance.
Oregon requires a contractor's Oregon CCB license for permitted work performed by a contractor; unlicensed work can expose both owner and contractor to additional penalties.