5005 SE 28TH AVE
Office Medical · Portland · 97202
At a glance
5005 SE 28TH AVE in Portland, OR is listed on the Portland / Multnomah County property roll as “Office Medical”, state ID 1S1E13BC4800. The roll records 5,990 sq ft of building area, 1 floors, a 1975 build year.
Portland / Multnomah County assessment roll
Parcel record
| Field | Value |
|---|---|
| state ID | 1S1E13BC4800 |
| Site address | 5005 SE 28TH AVE |
| Land use (DOR) | — Office Medical |
| Building area (actual) | 5,990 sq ft |
| Floors / units / buildings | 1 / — / — |
| Lot size | — |
| Year built | 1975 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | — |
Recorded owner (assessment roll)
KAISER FOUNDATION HEALTH PLAN OF TH
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
- 5005 SE 28TH AVE
- City
- Portland
- ZIP
- 97202
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 5005 SE 28TH AVE compare with other Portland office buildings?
At 5,990 sq ft, 5005 SE 28TH AVE is about 72% smaller 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 5005 SE 28TH 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 1S1E13BC4800 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 5005 SE 28TH AVE?
The recorded owner on the Portland / Multnomah County assessment roll (current) is KAISER FOUNDATION HEALTH PLAN OF TH. Owner mailing address on file: 500 NE MULTNOMAH ST #100, PORTLAND, OR, 97232.
How big is 5005 SE 28TH AVE?
The Portland / Multnomah County roll records 5,990 sq ft of building area, 1 floors, a build year of 1975.
What is the state ID for 5005 SE 28TH AVE?
State ID 1S1E13BC4800, site address 5005 SE 28TH AVE, Portland. It is the key to look the parcel up in the Regional taxlot service (Portland / Multnomah County).
More around 5005 SE 28TH 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 1S1E13BC4800.
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, “5005 SE 28TH AVE, Portland, OR (state ID 1S1E13BC4800)”, https://buildingcensus.com/offices/portland/office-building-74ae8170 (data as of September 21, 2026).