BuildabilityPortland, Oregon · pop. 642,715
What can you build in Portland?
Type an address in Portland, OR. Zoning context, flood, seismic, soil, radon, wildfire, utilities, and the sources behind each finding, in about twenty seconds.
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Local authority
How to verify zoning in Portland.
Portland zoning lives in Title 33 of the City Code, and PortlandMaps is the practical starting point: it returns the base zone, overlay zones, plan district, and any environmental or historic designation for a specific address in one view. Oregon statewide ADU and middle-housing rules also apply here, so the base zone alone will understate what the site allows.
Sources 4
- MapPortlandMaps (opens in a new tab)
City of Portland
- CodeTitle 33 Planning and Zoning (opens in a new tab)
City of Portland
- PermitsPermits (opens in a new tab)
Portland Permitting & Development
- ContactContact (opens in a new tab)
Portland Permitting & Development
Official determination: Portland Permitting & Development is the authority for official zoning and permit decisions.
How it works
Available data, one preliminary view.
Buildability geocodes the address, queries available flood, seismic, soil, radon, wildfire, and zoning context, and runs the published Buildability Score. Reports name the sources used and the items that still need local verification.
Building in Portland, OR.
Does Buildability make the official zoning decision in Portland?
No. Buildability organizes preliminary property context and links to local evidence.
What does the Buildability Score measure?
The preliminary score considers nine factors: zoning, flood, seismic, soil, radon, wildfire, utilities, terrain, and lot geometry. Availability and depth vary by address and source; City of Portland remains the local authority for project-specific decisions.
Start a property check in Portland.
The live Score is free on any address. The full report is $99, and reports never expire.
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Buildability Scores are an informational planning estimate from public data — not an appraisal, engineering opinion, or official zoning determination. Verify with your local jurisdiction before making a decision. Terms.