5350 TALLMAN AVE NW
Office · Seattle · 98107
At a glance
5350 TALLMAN AVE NW in Seattle, WA is listed on the Seattle / King County property roll as “Office”, parcel (major-minor) 2767703955. The roll records 92,477 sq ft of building area, 5 floors, a 2010 build year and an assessed value of $24,969,500. 6 active business locations at this address appear in public records.
Derived from suite and floor strings in the occupancy records
Which floors show activity
Floors 1-2 show no business on record — 2 unbroken floors, the longest such stretch here. That is where the public record shows nobody, in blocks — a place to start asking, not a listing.
- 52 on record
- 42 on record
- 31 on record
- 2no record
- 1no record
Floors are read from suite numbers on Seattle / King County business records (suite 4900 → floor 49). A floor with no record is not necessarily vacant — it may be mechanical, occupied by the owner, or let to a business whose receipt carries no suite. Receipts also lag reality by months. This shows where the public record places businesses, not a rent roll or an availability report. A stretch of quiet floors is not contiguous space for rent — it is contiguous silence in the record, which is the closest thing the public record has to that question and worth exactly what it costs to check.
The building's own benchmarking filing
Energy performance
From the building's own filing under its city's benchmarking ordinance. An ENERGY STAR score of 75 or above means the building outperforms three quarters of comparable buildings nationally. It is a self-reported figure, verified by the city only to the extent the ordinance requires.
Public record — 6 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| SOUNDMIND MEDICINE | # 510 | Apr 2017 | Seattle business licence | address · medium |
| SMILE BALLARD | # 410 | Oct 2014 | Seattle business licence | address · medium |
| SWEDISH OB GYN SPECIALISTS BALLARD | # 420 | Jul 2010 | Seattle business licence | address · medium |
| PROLIANCE SURGEONS INC PS | # 500 | Jan 2003 | Seattle business licence | address · medium |
| SWEDISH BALLARD PRIMARY CARE | # 301 | Jan 2002 | Seattle business licence | address · medium |
| BALLARD EMERGENCY PHYSICIANS PS | — | Nov 1984 | Seattle business licence | address · medium |
Seattle / King County assessment roll
Parcel record
| Field | Value |
|---|---|
| parcel (major-minor) | 2767703955 |
| Site address | 5350 TALLMAN AVE NW |
| Land use (DOR) | — Office |
| Building area (actual) | 92,477 sq ft |
| Floors / units / buildings | 5 / — / 1 |
| Lot size | — |
| Year built | 2010 |
| Zoning (primary) | — |
| Land value | $4,023,700 |
| Building value | — |
| Total assessed value | $24,969,500 |
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
- 5350 TALLMAN AVE NW
- City
- Seattle
- ZIP
- 98107
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 5350 TALLMAN AVE NW compare with other Seattle office buildings?
At 92,477 sq ft, 5350 TALLMAN AVE NW is about twice 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 $270 per square foot of building area, against $230 across all office floor area on the roll.
Does the owner of 5350 TALLMAN 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 5350 TALLMAN AVE NW recently?
The building files energy-benchmarking disclosures — 1 report year are matched to this parcel.
What does “Office” mean for this parcel?
The Seattle / King County roll classifies parcel (major-minor) 2767703955 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 5350 TALLMAN AVE NW?
Seattle / King County's published roll does not include owner names, so no owner is shown.
What companies have offices at 5350 TALLMAN AVE NW?
6 active business locations at this building appear in Seattle / King County public records, including SOUNDMIND MEDICINE, SMILE BALLARD, SWEDISH OB GYN SPECIALISTS BALLARD, PROLIANCE SURGEONS INC PS, SWEDISH BALLARD PRIMARY CARE. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 5350 TALLMAN AVE NW?
The Seattle / King County roll records 92,477 sq ft of building area, 5 floors, a build year of 2010.
What is the assessed value of 5350 TALLMAN AVE NW?
$24,969,500 on the Seattle / King County roll. Assessed values are taxable-roll figures, not market prices.
What is the parcel (major-minor) for 5350 TALLMAN AVE NW?
Parcel (major-minor) 2767703955, site address 5350 TALLMAN 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 5350 TALLMAN 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) 2767703955.
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, “5350 TALLMAN AVE NW, Seattle, WA (parcel (major-minor) 2767703955)”, https://buildingcensus.com/offices/seattle/office-building-cbbacce5 (data as of September 20, 2026).