1510 11TH AVE NW
Office · Seattle · 98027
At a glance
1510 11TH AVE NW in Seattle, WA is listed on the Seattle / King County property roll as “Office”, parcel (major-minor) 3557500234. The roll records 6,721 sq ft of building area, 1 floors, a 1995 build year and an assessed value of $2,229,100. It last sold for $6,450,000 in Oct 2025.
Recorded transfers — county roll + state sale file
Sale history
| Recorded | Price | Qualification | Source | Instrument |
|---|---|---|---|---|
| Oct 2025 | $6,450,000 | not rated | County roll | — |
Prices are the consideration recorded in Seattle / King County's public property records. Where a qualification code exists it is the assessor's judgement of whether a transfer was arm's length; transfers without one appear unrated rather than assumed clean. Whether a building is on the market today, and at what price, is not a public record and is not shown here — asking prices, listings and lease terms live in private commercial databases.
Public record — 0 matched business locations
Tenants & business locations
No active business locations at this address appear in the public records ingested so far. That is a statement about the records, not the building: tenants without a county business-tax receipt or a Florida registration at this address are invisible to public data.
Seattle / King County assessment roll
Parcel record
| Field | Value |
|---|---|
| parcel (major-minor) | 3557500234 |
| Site address | 1510 11TH AVE NW |
| Land use (DOR) | — Office |
| Building area (actual) | 6,721 sq ft |
| Floors / units / buildings | 1 / — / 1 |
| Lot size | — |
| Year built | 1995 |
| Zoning (primary) | — |
| Land value | $2,228,100 |
| Building value | — |
| Total assessed value | $2,229,100 |
Recorded owner (assessment roll)
No owning organisation shown. Where the county roll names a private individual, the name and mailing address are not published here.
Location
- Address
- 1510 11TH AVE NW
- City
- Seattle
- ZIP
- 98027
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 1510 11TH AVE NW compare with other Seattle office buildings?
At 6,721 sq ft, 1510 11TH AVE NW is less than a fifth the size of the average office building on the Seattle / King County roll, which comes to 46,649 sq ft across 4,289 buildings.
Its assessed value works out to $332 per square foot of building area, against $230 across all office floor area on the roll.
The last recorded sale priced it at $960 per square foot.
Does the owner of 1510 11TH AVE NW hold other Seattle office property?
Seattle / King County's published roll does not include owner names, so no owner is shown for any parcel in this metro.
What has happened at 1510 11TH AVE NW recently?
1 recorded transfer is on file for this parcel, the latest dated Oct 2025.
What does “Office” mean for this parcel?
The Seattle / King County roll classifies parcel (major-minor) 3557500234 as “Office”. 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 1510 11TH AVE NW?
Seattle / King County's published roll does not include owner names, so no owner is shown.
What companies have offices at 1510 11TH AVE NW?
No business locations at this building appear in the public records ingested so far — no licence, tax or registry record currently lists this address; that is a gap in the record, not proof the building is empty.
How big is 1510 11TH AVE NW?
The Seattle / King County roll records 6,721 sq ft of building area, 1 floors, a build year of 1995.
What is the assessed value of 1510 11TH AVE NW?
$2,229,100 on the Seattle / King County roll. Assessed values are taxable-roll figures, not market prices.
When did 1510 11TH AVE NW last sell?
The last recorded transfer was in Oct 2025 for $6,450,000 ($960 per square foot).
What is the parcel (major-minor) for 1510 11TH AVE NW?
Parcel (major-minor) 3557500234, site address 1510 11TH AVE NW, Seattle. It is the key to look the parcel up in the King County Assessor bulk extracts and Seattle open data (Seattle / King County).
More around 1510 11TH AVE NW
Everything here comes from public records, and public records go stale. If you know better, say so.
Data provenance — public records only
- Seattle / King County — King County Assessor bulk extracts and Seattle open data. Washington law restricts commercial use of lists of individuals, so this metro is built without personal names by design: the county's name-stripped account file provides mailing addresses (portfolios group by mailing cluster, unnamed), sales show price and date but never buyer or seller, and tenants are business licence trade names.
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: Seattle / King County assessment roll, parcel (major-minor) 3557500234.
About this data
Source: King County Assessor bulk extracts and Seattle open data (Seattle / King County), as published September 20, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “1510 11TH AVE NW, Seattle, WA (parcel (major-minor) 3557500234)”, https://buildingcensus.com/offices/seattle/office-building-bd4a7bea (data as of September 20, 2026).