4201 6th Ave S, Seattle, WA 98108

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

Imagery suggests: large distribution. AI estimate from public imagery. In recent public imagery (2026-06), the building appears well maintained. AI estimate from public imagery; may be outdated.

One of 1,229 reachable small-bay industrial buildings in Seattle. Larger than 99% of small-bay industrial buildings in Seattle (median 14,469 SF), derived from assessor records.

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Building size: 323,916 SF, King County Assessor
Lot size: 449,974 SF, King County Assessor
Year built: 1991, King County Assessor
Stories: 2, King County Assessor
Predominant use: Warehouse, King County Assessor
Assessed value: $83,238,800, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $256.98/SF, derived from assessor records
Lot coverage: 72%, derived from assessor records
Vintage: 1990s vintage
Zoning: MML U/85, King County
County use code: Warehouse
Parking (observed): surface lot, AI estimate from public imagery
Frontage (observed): mid block, AI estimate from public imagery

Nearby comparable buildings

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

4400 4th Ave S, Seattle · 0.1 mi · 49,199 SF · built 1956 · assessed $235.24/SF
601 S Nevada St, Seattle · 0.1 mi · 25,577 SF · built 1961 · assessed $196.70/SF
4424 4th Ave S, Seattle · 0.1 mi · 22,509 SF · built 1956 · assessed $209.73/SF
619 S Nevada St, Seattle · 0.1 mi · 20,700 SF · built 1970 · assessed $242.88/SF
4226 6th Ave S, Seattle · 0.1 mi · 15,000 SF · built 1965 · assessed $215.97/SF
4455 7th Ave S, Seattle · 0.1 mi · 144,794 SF · built 1970 · assessed $215.61/SF

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Sale history and market context

MakeMe Estimate: $99,032,328 (estimated market value), with a likely range of $85,398,276 to $110,483,993 (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.

Last sold: 1990-08-21 for $5,825,000 (recorded arm's-length sale).

Current ownership dates to 2015 (about 11 years) per recorded transfers.

2015-04-10: $63,250,000 from Adco Properties INC to Prologis-Exchange 4201 6th Avenue South LLC (part of a 3-parcel sale; price is the whole deal), rec. 20150410001408

2001-12-31: transfer from Alaska Distributors CO to Adco Properties INC (non-market transfer), rec. 20011231002841

1990-08-21: $5,825,000 from Anr Freight System INC to Alaska Distributors CO, rec. 199008281066

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 $22,448,200 (2011) to $83,238,800 (2026), up 271% over 15 years, per county tax rolls. The 2026 roll splits $83,238,800 into $24,748,500 land and $58,490,300 improvements.

Zoning: MML U/85 (per King County)

Lot: 449,974 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Street surface: Paved

Floor and use mix: Mega Warehouse 263,528 SF; Warehouse Office 60,388 SF (county building sections)

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

Permit history

2025-11-12: Electrical, declared value $13,000, permit 7116400-EL

2025-03-26: Remodel, declared value $50,000 (Revisit), permit 7018223-CN

2024-07-19: Electrical, declared value $46,060 (Complete), permit 7036466-EL

2017-03-21: Remodel, declared value $50,000 (Complete), permit 6576006

2017-01-12: Remodel, declared value $100,000 (Complete), permit 6561679

2016-11-04: Remodel, declared value $150,000 (Complete), permit 6565459

2016-11-04: Remodel, declared value $75,000 (Complete), permit 6565463

2016-10-26: Remodel (Complete), permit 6563828

Source: King County permit records (newest first).