3800 WI/ N INTERSTATE AVE
Office Medical · Portland · 97227
At a glance
3800 WI/ N INTERSTATE AVE in Portland, OR is listed on the Portland / Multnomah County property roll as “Office Medical”, state ID 1N1E22CC11400.
Portland / Multnomah County assessment roll
Parcel record
| Field | Value |
|---|---|
| state ID | 1N1E22CC11400 |
| Site address | 3800 WI/ N INTERSTATE AVE |
| Land use (DOR) | — Office Medical |
| Building area (actual) | — |
| Floors / units / buildings | — / — / — |
| Lot size | — |
| Year built | — |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | — |
Recorded owner (assessment roll)
KAISER FOUNDATION HOSP
Owner mailing address: 500 NE MULTNOMAH ST #100, PORTLAND, OR, 97232
45 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
- 3800 WI/ N INTERSTATE AVE
- City
- Portland
- ZIP
- 97227
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
Does the owner of 3800 WI/ N INTERSTATE AVE hold other Portland office property?
45 Portland office properties (45 parcels, 1.4M sq ft) are recorded to 3 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 1N1E22CC11400 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 3800 WI/ N INTERSTATE AVE?
The recorded owner on the Portland / Multnomah County assessment roll (current) is KAISER FOUNDATION HOSP. Owner mailing address on file: 500 NE MULTNOMAH ST #100, PORTLAND, OR, 97232.
What is the state ID for 3800 WI/ N INTERSTATE AVE?
State ID 1N1E22CC11400, site address 3800 WI/ N INTERSTATE AVE, Portland. It is the key to look the parcel up in the Regional taxlot service (Portland / Multnomah County).
More around 3800 WI/ N INTERSTATE 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 1N1E22CC11400.
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, “3800 WI/ N INTERSTATE AVE, Portland, OR (state ID 1N1E22CC11400)”, https://buildingcensus.com/offices/portland/office-building-adb4f307 (data as of September 21, 2026).