17900 International Blvd, Seatac, WA 98188

Office · Seatac · Seattle-Bellevue metro, WA

Imagery suggests: mid-rise office, appears multi-tenant. 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 AI estimate from public imagery; may be outdated.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 34 reachable office buildings in Seatac. Larger than 97% of office buildings in Seatac (median 20,852 SF), derived from assessor records.

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Building size
687,536 SF, King County Assessor
Lot size
651,300 SF, King County Assessor
Year built
1979, King County Assessor
Stories
11, King County Assessor
Buildings on parcel
3, King County Assessor
Predominant use
Sea-Tac Office Center - North Bldg, King County Assessor
Assessed value
$0, per the King County Assessor (not a market appraisal)
Lot coverage
106%, derived from assessor records
Vintage
1970s vintage
Zoning
CB-C, King County
County use code
Office Building
Construction (observed)
masonry, AI estimate from public imagery
Parking (observed)
structured, AI estimate from public imagery

Nearby comparable buildings

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

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Sale history and market context

Last sold: 2025-02-28 for $15,701,075 (recorded arm's-length sale).

Current ownership dates to 2025 per recorded transfers.

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

Land, site, and value history

Permit history

Source: King County permit records (newest first).