County valuation incomplete: County building evidence or valuation-model support is incomplete here, so this page shows county public facts and private owner claim tools without a MakeMe Estimate.
One of 1,701 reachable office buildings in Seattle.
Building size (estimated)
12,774 SF, estimated from lot coverage
Lot size
28,386 SF, King County Assessor
Predominant use
Office Building, King County Assessor
Assessed value
$26,966,700, per the King County Assessor (not a market appraisal)
Zoning
SM-SLU 175/85-280, King County
County use code
Office Building
Nearby comparable buildings
Same building type, by distance. Assessor facts only; not an opinion of value.
County building evidence or valuation-model support is incomplete here, so this page shows county public facts and private owner claim tools without a MakeMe Estimate.
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Last sold: 2003-07-15 for $2,825,000 (recorded arm's-length sale).
Current ownership dates to 2017 (about 9 years) per recorded transfers.
2022-02-03: transfer from Urbansea Holding LLC to RF Urbansea Tic LLC +Urban Union Star LLC (part of a 2-parcel sale; price is the whole deal), rec. 20220208000625
2017-01-13: $268,940,438 from SWB-II Seattle LLC to Urbansea Holding LLC (part of a 2-parcel sale; price is the whole deal), rec. 20170113001008
2014-09-17: $11,654,716 from 501 Fairview LLC to SWB-II Seattle LLC (part of a 2-parcel sale; price is the whole deal), rec. 20140917001216
2014-09-17: $3,366,183 from 501 Fairview LLC to SWB-II Seattle LLC (part of a 2-parcel sale; price is the whole deal), rec. 20140917001217
2003-07-15: $2,825,000 from Private party to 509 Fairview Partners LLC, rec. 20030715000731
Source: King County recorded sales extract; buyer and seller shown only when a company or organization. Individual names are withheld.
Value over time
Dark line: county assessed value per King County tax rolls. Diamonds: recorded arm's-length sales.
Land, site, and value history
Assessed value moved from $4,169,100 (2011) to $26,966,700 (2026), up 547% over 15 years, per county tax rolls. The 2026 roll splits $26,966,700 into $26,966,700 land and $0 improvements.