307 S 140th St, Burien, WA 98168

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

One of 103 reachable small-bay industrial buildings in Burien. Larger than 90% of small-bay industrial buildings in Burien (median 4,160 SF), derived from assessor records.

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Building size: 19,133 SF, King County Assessor
Lot size: 74,052 SF, King County Assessor
Year built: 1980, King County Assessor
Stories: 1, King County Assessor
Predominant use: Tilt Up Concrete Warehouse, King County Assessor
Assessed value: $3,283,000, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $171.59/SF, derived from assessor records
Lot coverage: 26%, derived from assessor records
Vintage: 1980s vintage
Zoning: MU-A, King County
County use code: Warehouse

Nearby comparable buildings

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

225 S 140th St, Burien · 0 mi · 23,310 SF · built 1976 · assessed $229.20/SF
13822 1st Ave S, Burien · 0.2 mi · 5,418 SF · built 1975 · assessed $254.10/SF
14025 1st Ave S, Burien · 0.2 mi · 9,779 SF · built 1982 · assessed $195.91/SF
13810 1st Ave S, Burien · 0.2 mi · 3,432 SF · built 1968 · assessed $186.33/SF
14223 1st Ave S, Burien · 0.3 mi · 2,952 SF · built 1954 · assessed $192.72/SF
13646 1st Ave S, Burien · 0.3 mi · 10,000 SF · built 1979 · assessed $222.30/SF

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Sale history and market context

MakeMe Estimate: $4,496,893 (estimated market value), with a likely range of $3,475,755 to $4,541,861 (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: 1999-04-06 for $2,017,800 (recorded arm's-length sale).

Current ownership dates to 1999 (about 27 years) per recorded transfers.

1999-04-06: $2,017,800 from Data Base Real Estate Holdings LLC to Arcus Data Security INC, rec. 199904082800

1997-12-31: transfer from Private party to Data Base Real Estate Holdings (non-market transfer), rec. 199801220975

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 $1,606,500 (2011) to $3,283,000 (2026), up 104% over 15 years, per county tax rolls. The 2026 roll splits $3,283,000 into $1,369,900 land and $1,913,100 improvements.

Zoning: MU-A (per King County)

Lot: 74,052 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Street surface: Paved

Floor and use mix: Storage Warehouse 13,883 SF; Warehouse Office 5,250 SF (county building sections)

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

Permit history

2022-02-24: Other, declared value $140,000 (Complete), permit BLD-22-0436

2018-10-22: Other, declared value $11,184 (Screened), permit FPS-17-1922

2018-10-22: Electrical, declared value $3,728 (Screened), permit ELE-17-1923

2017-03-31: Other, declared value $13,400 (Screened), permit FPS-17-0408

2003-12-19: Remodel, declared value $125,000 (Complete), permit BUR 03-0944-BLD-A

2002-03-29: Building, New, declared value $175,000 (Complete), permit BUR 02-0211-BLD-A

Source: King County permit records (newest first).