1120 NW 20TH AVE
Office Medical · Portland · 97209
At a glance
1120 NW 20TH AVE in Portland, OR is listed on the Portland / Multnomah County property roll as “Office Medical”, state ID 1N1E33AB8500. The roll records 26,812 sq ft of building area, 2 floors, a 1974 build year.
Portland / Multnomah County assessment roll
Parcel record
| Field | Value |
|---|---|
| state ID | 1N1E33AB8500 |
| Site address | 1120 NW 20TH AVE |
| Land use (DOR) | — Office Medical |
| Building area (actual) | 26,812 sq ft |
| Floors / units / buildings | 2 / — / — |
| Lot size | — |
| Year built | 1974 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | — |
Recorded owner (assessment roll)
LEGACY HEALTH SYSTEM
Owner mailing address: 1919 NW LOVEJOY ST, PORTLAND, OR, 97209
68 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
- 1120 NW 20TH AVE
- City
- Portland
- ZIP
- 97209
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 1120 NW 20TH AVE compare with other Portland office buildings?
At 26,812 sq ft, 1120 NW 20TH AVE is about 24% larger than 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 1120 NW 20TH AVE hold other Portland office property?
68 Portland office properties (68 parcels, 2.9M 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 Medical” mean for this parcel?
The Portland / Multnomah County roll classifies state ID 1N1E33AB8500 as “Office Medical”. 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 1120 NW 20TH AVE?
The recorded owner on the Portland / Multnomah County assessment roll (current) is LEGACY HEALTH SYSTEM. Owner mailing address on file: 1919 NW LOVEJOY ST, PORTLAND, OR, 97209.
How big is 1120 NW 20TH AVE?
The Portland / Multnomah County roll records 26,812 sq ft of building area, 2 floors, a build year of 1974.
What is the state ID for 1120 NW 20TH AVE?
State ID 1N1E33AB8500, site address 1120 NW 20TH AVE, Portland. It is the key to look the parcel up in the Regional taxlot service (Portland / Multnomah County).
More around 1120 NW 20TH 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.
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Dataset updated . Source: Portland / Multnomah County assessment roll, state ID 1N1E33AB8500.
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, “1120 NW 20TH AVE, Portland, OR (state ID 1N1E33AB8500)”, https://buildingcensus.com/offices/portland/office-building-d8be9baf (data as of September 21, 2026).