4801 1st Ave S, Seattle, WA 98134

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

One of 1,229 reachable small-bay industrial buildings in Seattle. Larger than 87% of small-bay industrial buildings in Seattle (median 14,469 SF), derived from assessor records.

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Building size: 53,040 SF, King County Assessor
Lot size: 73,636 SF, King County Assessor
Year built: 2000, King County Assessor
Stories: 1, King County Assessor
Predominant use: Office / Vehicle Storage Garage, King County Assessor
Assessed value: $15,184,600, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $286.29/SF, derived from assessor records
Lot coverage: 72%, derived from assessor records
Vintage: 2000s vintage
Zoning: MML U/85, King County
County use code: Industrial(Gen Purpose)
Construction (observed): masonry, AI estimate from public imagery
Parking (observed): street only, 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.

88 S Hudson St, Seattle · 0 mi · 16,620 SF · built 1971 · assessed $199.42/SF
4747 1st Ave S, Seattle · 0.1 mi · 17,461 SF · built 1955 · assessed $216/SF
80 S Hudson St, Seattle · 0.1 mi · 187,200 SF · built 1954 · assessed $157.72/SF
4786 1st Ave S, Seattle · 0.1 mi · 234,233 SF · built 1937 · assessed $220.78/SF
5000 1st Ave S, Seattle · 0.1 mi · 48,890 SF · built 1941 · assessed $172.97/SF
36 S Hudson St, Seattle · 0.1 mi · 14,759 SF · built 2006 · assessed $342.56/SF

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Sale history and market context

MakeMe Estimate: $19,622,702 (estimated market value), with a likely range of $15,166,852 to $19,818,929 (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: 2000-12-12 for $5,000,000 (recorded arm's-length sale).

Current ownership dates to 2000 (about 26 years) per recorded transfers.

2000-12-12: $5,000,000 from Private party to Qwest Corporation, rec. 20001214001148

2000-02-29: $1,650,000 from Private party to Alco Investment Company (part of a 2-parcel sale; price is the whole deal), rec. 20000229001375

2000-02-08: $4,200,000 from Rio Algom INC to Private party (part of a 2-parcel sale; price is the whole deal), rec. 20000208000719

1998-06-04: $2,198,000 from Private party to Rio Algom INC, rec. 199806051704

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 $6,630,000 (2011) to $15,184,600 (2026), up 129% over 15 years, per county tax rolls. The 2026 roll splits $15,184,600 into $4,418,100 land and $10,766,500 improvements.

Zoning: MML U/85 (per King County)

Lot: 73,636 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Floor and use mix: Garage, Storage 41,600 SF; Office Building 5,200 SF (county building sections)

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