6437 S 144th St, Tukwila, WA 98168

Small-Bay Industrial · Tukwila · Seattle-Bellevue metro, WA

One of 251 reachable small-bay industrial buildings in Tukwila. Larger than 32% of small-bay industrial buildings in Tukwila (median 36,796 SF), derived from assessor records.

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Building size: 19,220 SF, King County Assessor
Lot size: 63,510 SF, King County Assessor
Year built: 1976, King County Assessor
Stories: 1, King County Assessor
Predominant use: Whse/Office, King County Assessor
Assessed value: $3,396,600, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $176.72/SF, derived from assessor records
Lot coverage: 30%, derived from assessor records
Vintage: 1970s vintage
Zoning: C/LI, King County
County use code: Warehouse
Construction (observed): masonry, AI estimate from public imagery
Parking (observed): surface lot, AI estimate from public imagery

Nearby comparable buildings

Same building type, by distance. Assessor facts only; not an opinion of value.

14590 Interurban Ave S, Tukwila · 0.1 mi · 32,323 SF · built 2015 · assessed $192.44/SF
6440 S 144th St, Tukwila · 0.1 mi · 38,360 SF · built 1984 · assessed $192.87/SF
14550 Interurban Ave S, Tukwila · 0.1 mi · 38,476 SF · built 2015 · assessed $200.39/SF
6275 S 143rd Pl, Tukwila · 0.1 mi · 8,400 SF · built 1977 · assessed $195.94/SF
6460 S 144th St, Tukwila · 0.1 mi · 21,520 SF · built 1966 · assessed $151.67/SF
6424 S 143rd Pl, Tukwila · 0.1 mi · 4,800 SF · built 1979 · assessed $182.73/SF

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Sale history and market context

MakeMe Estimate: $4,350,815 (estimated market value), with a likely range of $3,362,848 to $4,394,323 (half of recent verified sales in this segment landed inside that range). Based on 81 verified arm's-length comparable sales (through 2026-05-29). Not an appraisal. How this estimate works.

Last sold: 1998-09-04 for $990,000 (recorded arm's-length sale).

Current ownership dates to 2005 (about 21 years) per recorded transfers.

2 administrative transfers (no consideration), 2011 to 2012

2005-08-12: $1,750,000 from Guardian Properties LLC to Private party (part of a 2-parcel sale; price is the whole deal), rec. 20050816001246

2000-12-15: $178,187 from G T Development Corporation to Guardian Properties LLC (non-market transfer), rec. 20001228001262

1998-09-04: $990,000 from G T Development Corporation to Guardian Properties LLC, rec. 199809040968

Source: King County recorded sales extract; buyer and seller shown only when a company or organization. Individual names are withheld.

Value over time

Solid line: county appraised value per King County tax rolls. Shaded range: our modeled estimate for each year, built from recorded arm's-length sales in the building's segment; years without enough sales stay unmodeled. Dots: recorded arm's-length sales. Not an appraisal. How this estimate works.

Land, site, and value history

Assessed value moved from $1,412,300 (2011) to $3,396,600 (2026), up 141% over 15 years, per county tax rolls. The 2026 roll splits $3,396,600 into $1,810,000 land and $1,586,600 improvements.

Zoning: C/LI (per King County)

Lot: 63,510 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Street surface: Paved

Floor and use mix: Industrial Light Manufacturing 10,420 SF; Warehouse Office 6,200 SF (county building sections)

County districts report (schools, fire, sewer, council; on kingcounty.gov)