905 NW 12TH AVE
Office Low Rise · Portland · 97209
At a glance
905 NW 12TH AVE in Portland, OR is listed on the Portland / Multnomah County property roll as “Office Low Rise”, state ID 1N1E33AD100. The roll records 80,000 sq ft of building area, 2 floors, a 1949 build year.
Portland / Multnomah County assessment roll
Parcel record
| Field | Value |
|---|---|
| state ID | 1N1E33AD100 |
| Site address | 905 NW 12TH AVE |
| Land use (DOR) | — Office Low Rise |
| Building area (actual) | 80,000 sq ft |
| Floors / units / buildings | 2 / — / — |
| Lot size | — |
| Year built | 1949 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | — |
Recorded owner (assessment roll)
UNICO BOP RIVERTEC LLC
Owner mailing address: 1326 5TH AVE STE 800, SEATTLE, WA, 98101
11 Portland office properties share this owner mailing address →
Commercial property is usually held one building per entity; a shared mailbox is how the roll reveals a portfolio. It is evidence of common ownership, not proof.
Location
- Address
- 905 NW 12TH AVE
- City
- Portland
- ZIP
- 97209
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 905 NW 12TH AVE compare with other Portland office buildings?
At 80,000 sq ft, 905 NW 12TH AVE is about 4 times the size of the average office building on the Portland / Multnomah County roll, which comes to 21,585 sq ft across 2,917 buildings.
Does the owner of 905 NW 12TH AVE hold other Portland office property?
11 Portland office properties (11 parcels, 1.6M sq ft) are recorded to 9 owner entities sharing this parcel's tax-bill mailing address. A shared mailing address is evidence of common ownership, not proof of it.
What does “Office Low Rise” mean for this parcel?
The Portland / Multnomah County roll classifies state ID 1N1E33AD100 as “Office Low Rise”. BuildingCensus includes a parcel in its office census when the roll gives it an office-class use, so the label is the county's, not an inference.
Frequently asked questions
Who owns 905 NW 12TH AVE?
The recorded owner on the Portland / Multnomah County assessment roll (current) is UNICO BOP RIVERTEC LLC. Owner mailing address on file: 1326 5TH AVE STE 800, SEATTLE, WA, 98101.
How big is 905 NW 12TH AVE?
The Portland / Multnomah County roll records 80,000 sq ft of building area, 2 floors, a build year of 1949.
What is the state ID for 905 NW 12TH AVE?
State ID 1N1E33AD100, site address 905 NW 12TH AVE, Portland. It is the key to look the parcel up in the Regional taxlot service (Portland / Multnomah County).
More around 905 NW 12TH AVE
Everything here comes from public records, and public records go stale. If you know better, say so.
Data provenance — public records only
- Portland / Multnomah County — Regional taxlot service (owner names, mailing addresses, floors, building areas, and the last recorded sale with price). Oregon publishes no bulk transaction history and Portland no business-licence roll, so sales are last-per-parcel and no tenant layer exists.
Every fact on this page is drawn from the government records above — no listing sites, no scraped platforms, no third-party images. Facts from public records are uncopyrightable; each tenancy row carries its source and match confidence. Records can lag reality — a business-tax receipt or registration at an address is evidence of occupancy, not a lease confirmation.
Working with Portland office parcels? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
Dataset updated . Source: Portland / Multnomah County assessment roll, state ID 1N1E33AD100.
About this data
Source: Regional taxlot service (Portland / Multnomah County), as published September 21, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “905 NW 12TH AVE, Portland, OR (state ID 1N1E33AD100)”, https://buildingcensus.com/offices/portland/office-building-476f21a6 (data as of September 21, 2026).