STANDARD INS CO
5 office properties in Portland / Multnomah County recorded to 3 owner entities mailing to PO BOX 711, PORTLAND, OR. likely one owner
At a glance
STANDARD INS CO is recorded as the owner of 5 office properties (5 parcels) in Portland / Multnomah County, totalling 902.4K sq ft of building area. The holdings sit in 3 owner entities that share one tax-bill mailing address in PORTLAND, OR — and a name root, which is how a single sponsor usually holds property.
County assessment roll
Properties
| Building | Submarket | Sq ft | Assessed | Last sold | Tenants |
|---|---|---|---|---|---|
| 900 SW 5TH AVE | Portland | 459.5K | — | — | 0 |
| 1100 SW 6TH AVE | Portland | 262.9K | — | — | 0 |
| 933 SW 3RD AVE | Portland | 180K | — | — | 0 |
| 930 SW 4TH AVE | Portland | — | — | — | 0 |
| 1100 WI/ SW 6TH AVE | Portland | — | — | — | 0 |
Names on the deeds
Owner entities at this address
- STANDARD INS CO
- STANDARD INSURANCE CO
- STANDARD INSURANCE COMPANY
How this group was built. These entities share both a mailing address and a name root, which is how a single sponsor usually holds property — one entity per building.The county records an owner and a mailing address for every parcel; this page collects the office parcels whose owners mail to the same address, and counts buildings rather than parcels using the county's own condo-to-building link. Lease terms, rents and the identity of a manager acting for the owner are not public records and are not shown.
Where are STANDARD INS CO's office buildings?
All 5 properties are in Portland.
The largest is 900 SW 5TH AVE in Portland at 459.5K sq ft over 28 floors.
Recorded build years run from 1962 to 1971.
How large is this portfolio within Portland's office market?
Its 902.4K sq ft is 1.43% of the 63M sq ft of office building area on the Portland / Multnomah County roll.
It holds 5 of the metro's 2,917 office buildings.
Frequently asked questions
How many office buildings does STANDARD INS CO own in Portland?
5 office properties (5 parcels) on the Portland / Multnomah County roll, counted by building rather than by condo parcel.
What is STANDARD INS CO's largest office building?
900 SW 5TH AVE, Portland — 459.5K sq ft.
Are these properties owned by one company?
These entities share both a mailing address and a name root, which is how a single sponsor usually holds property — one entity per building. 3 owner entities share the mailing address. It is evidence of common ownership, not proof of it.
Related
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.
Dataset updated . Derived from public data sources.
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, “STANDARD INS CO — Portland office property holdings”, https://buildingcensus.com/offices/portland/owners/standard-ins-co-f1fa02 (data as of September 21, 2026).