2028 21st Ave S, Seattle, WA 98144

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

Imagery suggests: industrial warehouse. AI estimate from public imagery. In recent public imagery (2026-06), the building appears serviceable with visible wear. AI estimate from public imagery; may be outdated.

One of 1,229 reachable small-bay industrial buildings in Seattle. Larger than 75% of small-bay industrial buildings in Seattle (median 14,469 SF), derived from assessor records.

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Building size: 31,000 SF, King County Assessor
Lot size: 25,600 SF, King County Assessor
Year built: 1970, King County Assessor
Stories: 2, King County Assessor
Predominant use: Distribution Warehouse, King County Assessor
Assessed value: $5,141,100, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $165.84/SF, derived from assessor records
Lot coverage: 121%, derived from assessor records
Vintage: 1970s vintage
Zoning: C1-75 (M), King County
County use code: Industrial(Heavy)
Construction (observed): tilt up, AI estimate from public imagery
Parking (observed): none visible, AI estimate from public imagery

Nearby comparable buildings

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

1803 21st Ave S, Seattle · 0.1 mi · 15,706 SF · built 1978 · assessed $165.64/SF
1730 20th Ave S, Seattle · 0.2 mi · 66,455 SF · built 2022 · assessed $343.64/SF
2501 S Plum St, Seattle · 0.3 mi · 150,017 SF · built 1966 · assessed $214.88/SF
2510 Beacon Ave S, Seattle · 0.5 mi · 12,484 SF · built 1986 · assessed $110.50/SF
847 Rainier Ave S, Seattle · 0.7 mi · 6,160 SF · built 1980 · assessed $310.81/SF
915 S Walker St, Seattle · 0.7 mi · 10,692 SF · built 2007 · assessed $371.78/SF

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Sale history and market context

MakeMe Estimate: $6,900,509 (estimated market value), with a likely range of $5,950,497 to $7,698,453 (half of recent verified sales in this segment landed inside that range). Based on 96 verified arm's-length comparable sales (through 2026-05-29). Not an appraisal. How this estimate works.

Current ownership dates to 2007 (about 19 years) per recorded transfers.

2007-08-10: $3,985,000 from Private party to MB Warehouse LLC (non-market transfer), rec. 20070810002124

2007-04-23: transfer from Hill Street Associates to Hemmat Family LLC Et Al (non-market transfer), rec. 20070425002241

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 $3,694,200 (2011) to $5,141,100 (2026), up 39% over 15 years, per county tax rolls. The 2026 roll splits $5,141,100 into $3,968,000 land and $1,173,100 improvements.

Zoning: C1-75 (M) (per King County)

Lot: 25,600 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Street surface: Paved

Floor and use mix: Storage Warehouse 28,848 SF; Mixed Use Office 2,152 SF (county building sections)

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