1700 SW 257TH AVE
Office Medical · Troutdale · 97060
At a glance
1700 SW 257TH AVE in Troutdale, OR is listed on the Portland / Multnomah County property roll as “Office Medical”, state ID 1N3E35AC100. The roll records 6,541 sq ft of building area, 2 floors, a 1991 build year.
Portland / Multnomah County assessment roll
Parcel record
| Field | Value |
|---|---|
| state ID | 1N3E35AC100 |
| Site address | 1700 SW 257TH AVE |
| Land use (DOR) | — Office Medical |
| Building area (actual) | 6,541 sq ft |
| Floors / units / buildings | 2 / — / — |
| Lot size | — |
| Year built | 1991 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | — |
Recorded owner (assessment roll)
PORTLAND ADVENTIST MEDICAL CENTER
Owner mailing address: PO BOX 619135, ROSEVILLE, CA, 95661
7 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
- 1700 SW 257TH AVE
- City
- Troutdale
- ZIP
- 97060
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 1700 SW 257TH AVE compare with other Portland office buildings?
At 6,541 sq ft, 1700 SW 257TH AVE is about 70% 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 1700 SW 257TH AVE hold other Portland office property?
7 Portland office properties (7 parcels, 706.6K sq ft) are recorded to an owner 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 1N3E35AC100 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 1700 SW 257TH AVE?
The recorded owner on the Portland / Multnomah County assessment roll (current) is PORTLAND ADVENTIST MEDICAL CENTER. Owner mailing address on file: PO BOX 619135, ROSEVILLE, CA, 95661.
How big is 1700 SW 257TH AVE?
The Portland / Multnomah County roll records 6,541 sq ft of building area, 2 floors, a build year of 1991.
What is the state ID for 1700 SW 257TH AVE?
State ID 1N3E35AC100, site address 1700 SW 257TH AVE, Troutdale. It is the key to look the parcel up in the Regional taxlot service (Portland / Multnomah County).
More around 1700 SW 257TH 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 1N3E35AC100.
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, “1700 SW 257TH AVE, Troutdale, OR (state ID 1N3E35AC100)”, https://buildingcensus.com/offices/portland/office-building-1374be6d (data as of September 21, 2026).