Deck Permit in Portland, Oregon
It depends
Sometimes, depending on the project
Before building a deck whose walking surface is more than 30 inches above the adjacent grade.
By Mario Bailey, verified against official sources
Quick answer
Portland requires a building permit and inspections for a deck whose walking surface sits more than 30 inches above adjacent grade, measured 36 inches out from the edge of the deck. If the walking surface of the entire deck is 30 inches or lower, no building permit is needed. A low deck can still need a zoning permit if the property is in an environmental, greenway, or river overlay zone. Covered decks carry additional zoning requirements regardless of height.
Typical threshold: height of the deck walking surface above adjacent grade, taken 36 inches out from the edge of the deck.
Who is pulling this permit?
Apply yourself
Hire it out
Before you sign, ask the contractor:
- Who pulls the permit, you or me, and is the permit fee included in the bid?
- Which inspections will this job need, and who meets the inspector on site?
- Is your contractor license active in this locality, and under which business name?
When a permit is usually needed
Before building a deck whose walking surface is more than 30 inches above the adjacent grade.
What a deck permit costs in Portland
Line itemAmountApplies to
deck permitBy formulaBuilding and Other Permits Fee Schedule for the City of Portland, effective July 10, 2026: Building Permit Fee is valuation based, with a $167.00 minimum fee for total value of construction work of $1 to $500, then $167.00 for the first $500 plus $3.59 for each additional $100 up to $2,000. A Development Services Fee - Residential applies on top, minimum $21.19. A 12% State of Oregon surcharge is applied to building, plumbing, electrical, and mechanical permits.
Fee schedule in forceOfficial scheduleRead . Fees are the jurisdiction’s; we do not mark them up or estimate them.
How Portland compares in Oregon
Closest deck permit thresholds outside Oregon
Jurisdictions we cover whose limit sits nearest Portland's 30 inches above adjacent grade.
- Alameda County, California, Height of a raised deck above adjacent grade at which the building permit exemption stops, and only where the deck is not over a basement or story below and is not part of an accessible route
- San Diego County, California, A deck needs a building permit when it is more than 30 inches above adjacent grade, or sits over a basement or story below, or forms part of an accessible route.
- St. Louis, Missouri, inches above adjacent grade for an uncovered wood deck or patio resting directly on the ground or a rock base with no permanent foundation
How to apply in Portland
A residential deck permit application is a set of construction documents that show what will be built and prove it meets the IRC deck provisions. In practice that means a scaled site plan locating the deck and its setbacks, plus deck plans and structural details covering the footings, posts, beams, joists, ledger, guards, and stairs.
What most deck permit applications include:
- A permit application identifying the work, the deck's size (square footage), and whether electrical work such as lights or receptacles is included, submitted for plan review before construction begins (IRC R106).
- A scaled site plan (for example 1/4 inch to 1 foot) showing the new deck's location relative to the house, its overall length and width, and dimensioned distances from the deck to all property lines and other structures so required setbacks can be verified (IRC R106.1.1).
- A deck plan drawn to scale showing overall dimensions and the framing layout: joist size, spacing, span, and species; beam size and span; post size and height; and footing or pier size and depth (IRC R507.4 posts, R507.5 beams, R507.6 joists, R507.3 footings).
- A section or side elevation with connection details showing the ledger attachment to the house band joist with flashing, the fastener or bolt schedule, joist hangers, post-to-beam and post-to-footing connections, and the required lateral load connection (IRC R507.9 ledger connection, R507.9.2 lateral connection, R507.2.4 flashing).
- Footing sizing derived from tributary area, the soil bearing value, and design loads per IRC Table R507.3.1, with footings shown bearing on undisturbed soil at the frost depth required by the jurisdiction (IRC R507.3).
- Details for the guards required where the walking surface is more than 30 inches above grade, and for the stairs and handrails, showing guard height and opening limits, stair riser and tread dimensions, and handrail location (IRC R312 guards, R311.7 stairs and handrails).
- For designs that fall outside the prescriptive R507 tables (for example multi-story or stacked decks, or a ledger attached to a cantilever), engineered and stamped structural plans are submitted in place of the prescriptive details (IRC R507.1 and R301).
General submittal guidance from IRC R106.1.1 (construction documents) and IRC R507 (exterior decks), 2021 IRC. Source. Portland Permitting & Development sets the exact checklist for Portland.
Where to apply in Portland:
Portland Permitting & Development
- Development Services Center, 1900 SW Fourth Avenue, First floor lobby, Portland, OR 97201
- Phone: 503-823-7300
- Email: permittingservices@portlandoregon.gov
Inspections and closing out your permit
Deck work is inspected in sequence as it is built: the footings before concrete is placed, the framing before the decking boards go down, and a final inspection once the deck is complete. Each stage checks the items that would be hidden or unsafe if missed.
- Footing or pier inspection: after the holes are dug and any forms or reinforcing are set but before concrete is placed, the inspector checks footing depth and diameter, a flat undisturbed bearing surface, and that the holes are free of water (IRC R109.1.1 foundation inspection; R507.3 footings).
- Framing inspection: after the deck is framed but before the decking conceals it, the inspector verifies the ledger attachment and its flashing, the fastener and bolt schedule, joist hangers and metal connectors, post-to-beam and post-to-footing connections, and the lateral load connection; call it before decking is installed (IRC R109.1.4 frame inspection; R507.9 ledger and flashing).
- Final inspection: after the deck is complete and before it is used, the inspector confirms guard height and opening limits (a 4 inch sphere must not pass, 4 3/8 inch at stairs), stair riser and tread dimensions, handrail height and graspability where there are 4 or more risers, stair landings, and required stair lighting (IRC R109.1.6 final inspection; R312 guards, R311.7 stairs and handrails).
Schedule each inspection in advance and pass the final before you use the work or close the permit. Request inspections through the Portland permit portal or by phone at 503-823-7300.
Inspection sequence from IRC R109 (inspections: R109.1.1 footing before concrete, R109.1.4 frame, R109.1.6 final), 2021 IRC. Source. An open permit left un-inspected can surface later in a title search or home sale.
Your Deck Permit checklist for Portland
- Confirm the requirement. Sometimes, depending on the project. Typical threshold: height of the deck walking surface above adjacent grade, taken 36 inches out from the edge of the deck. Usually needed: Before building a deck whose walking surface is more than 30 inches above the adjacent grade.
- Budget the fee. Building and Other Permits Fee Schedule for the City of Portland, effective July 10, 2026: Building Permit Fee is valuation based, with a $167.00 minimum fee for total value of construction work of $1 to $500, then $167.00 for the first $500 plus $3.59 for each additional $100 up to $2,000. A Development Services Fee - Residential applies on top, minimum $21.19. A 12% State of Oregon surcharge is applied to building, plumbing, electrical, and mechanical permits. Official fee schedule.
- Apply. A residential deck permit application is a set of construction documents that show what will be built and prove it meets the IRC deck provisions. In practice that means a scaled site plan locating the deck and its setbacks, plus deck plans and structural details covering the footings, posts, beams, joists, ledger, guards, and stairs. Start at the Portland permit portal.
- Keep the office details handy. Portland Permitting & Development. Phone: 503-823-7300. Address: Development Services Center, 1900 SW Fourth Avenue, First floor lobby, Portland, OR 97201.
- Plan for inspections. Deck work is inspected in sequence as it is built: the footings before concrete is placed, the framing before the decking boards go down, and a final inspection once the deck is complete. Each stage checks the items that would be hidden or unsafe if missed.
Compiled from the official sources on this page. Last checked .
Frequently asked questions
- Do you need a deck permit in Portland?
- Portland requires a building permit and inspections for a deck whose walking surface sits more than 30 inches above adjacent grade, measured 36 inches out from the edge of the deck. If the walking surface of the entire deck is 30 inches or lower, no building permit is needed. A low deck can still need a zoning permit if the property is in an environmental, greenway, or river overlay zone. Covered decks carry additional zoning requirements regardless of height. Height of the deck walking surface above adjacent grade, taken 36 inches out from the edge of the deck. Always confirm with the office before starting.
- How much does a deck permit cost in Portland?
- Building and Other Permits Fee Schedule for the City of Portland, effective July 10, 2026: Building Permit Fee is valuation based, with a $167.00 minimum fee for total value of construction work of $1 to $500, then $167.00 for the first $500 plus $3.59 for each additional $100 up to $2,000. A Development Services Fee - Residential applies on top, minimum $21.19. A 12% State of Oregon surcharge is applied to building, plumbing, electrical, and mechanical permits. See the official fee schedule for current amounts.
- How long does a deck permit take in Portland?
- Portland Permitting & Development publishes a first review goal of 7 days for residential alterations and 15 days for residential additions. Times can vary by workload and project scope, so confirm with the office.
- Where do you apply for a deck permit in Portland?
- You can apply through the Portland permit portal or contact the Portland Permitting & Development directly. The links are listed on this page.
- Can a homeowner pull a deck permit themselves in Portland?
- Under Oregon law (ORS 701.010(7); ORS 701.325(1), (2), (3)): A homeowner may pull the permit and do the work. ORS 701.010(7) exempts from Construction Contractors Board licensing a person performing work on property that person owns, or on that person's own residence whether or not they own it, so no CCB license is needed to act as your own builder. That exemption does not cover someone working in the pursuit of an independent business with intent to offer the structure for sale. Oregon does require a signed disclosure at the counter: ORS 701.325(1) makes every city, county, or state permit office collect a written statement signed by the applicant, and an applicant claiming a licensing exemption must state the basis for it. ORS 701.325(2) requires the office to give the applicant the Information Notice to Property Owners About Construction Responsibilities and withhold the residential building permit until the applicant signs a statement, one option of which is that they are performing work on property they own or a residence they live in or will live in, and that any contractors they hire will be CCB licensed and properly endorsed. The Information Notice itself is a CCB rule form under ORS 701.325(3) covering payroll tax, workers' compensation, and liability and property damage insurance responsibilities. Confirm how Portland applies this before you apply.
From the Library
What else needs a permit in Portland
Every other permit type we have verified for this jurisdiction, with the rule that applies here.
| Project | Permit needed? | Threshold | Typical fee |
|---|---|---|---|
| Electrical Permit | It depends | Not specified | Electrical Permit Fee Schedule for the City of Portland, effective July 10, 2026. |
| Fence Permit | It depends | wood and similar materials; 4 feet for masonry or concrete, 8 feet for woven wire or chain link, and any barrier around a swimming pool | Building and Other Permits Fee Schedule for the City of Portland, effective July 10... |
| HVAC Permit | Permit required | Not specified | Mechanical Permit Fee Schedule for the City of Portland, effective July 10, 2026, One &... |
| Patio Permit | It depends | area of an attached patio cover, porch cover, carport, or other open-sided roofed structure | Building and Other Permits Fee Schedule for the City of Portland, effective July 10... |
| Plumbing Permit | It depends | Not specified | Plumbing Permit Fee Schedule for the City of Portland, effective July 10, 2026. |
| Pool Permit | It depends | depth of water in a structure used for swimming or recreational bathing | Building and Other Permits Fee Schedule for the City of Portland, effective July 10... |
| Roof Replacement Permit | It depends | Not specified | Building and Other Permits Fee Schedule for the City of Portland, effective July 10... |
| Shed Permit | It depends | in area, or a height over 15 feet from the grade plane to the average height of the highest roof surface; on lots over 2 acres the area trigger rises to 400 square feet when the structure is at least 20 feet from property lines and other structures | Building and Other Permits Fee Schedule for the City of Portland, effective July 10... |
| Solar Permit | Permit required | Not specified | Portland Permitting & Development publishes solar permit fee estimates, noting 'The fees... |
Deck Permit in other Oregon localities
Everything above, sourced
Code references
National and state model-code sections the general guidance on this page is drawn from. They are not Portland documents; the office above sets the local rules.
Verified by a person against the sources above on , not confirmed with Portland Permitting & Development. Rules change; confirm before you build. How we verify.
Last checked: Report an error on this page
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