645 Elliott Ave W, Seattle, WA 98119

Office · Seattle · Seattle-Bellevue metro, WA

Imagery suggests: grain elevator. 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 AI estimate from public imagery; may be outdated.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 957 reachable office buildings in Seattle. Larger than 96% of office buildings in Seattle (median 20,410 SF), derived from assessor records.

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Building size: 533,862 SF, King County Assessor
Lot size: 129,156 SF, King County Assessor
Year built: 2009, King County Assessor
Stories: 4, King County Assessor
Buildings on parcel: 2, King County Assessor
Predominant use: South Building, King County Assessor
Assessed value: $93,909,000, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $175.91/SF, derived from assessor records
Lot coverage: 413%, derived from assessor records
Vintage: 2000s vintage
Zoning: II U/85, King County
County use code: Office Building
Construction (observed): masonry, 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.

920 Elliott Ave W, Seattle · 0.2 mi · 6,000 SF · built 1942 · assessed $331.68/SF
1039 Elliott Ave W, Seattle · 0.2 mi · 1,792 SF · built 2020 · assessed $6,011/SF
501 Elliott Ave W, Seattle · 0.2 mi · 165,111 SF · built 2000 · assessed $484.01/SF
401 Elliott Ave W, Seattle · 0.3 mi · 132,010 SF · built 2000 · assessed $395.27/SF
410 W Harrison St, Seattle · 0.3 mi · 50,028 SF · built 1962 · assessed $395.90/SF
351 Elliott Ave W, Seattle · 0.3 mi · 162,420 SF · built 2000 · assessed $275.03/SF

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Sale history and market context

MakeMe Estimate: $86,650,139 (estimated market value), with a likely range of $78,310,248 to $112,901,031 (half of recent verified sales in this segment landed inside that range). Based on 12 verified arm's-length comparable sales (through 2026-05-29). Not an appraisal. How this estimate works.

Last sold: 2006-07-21 for $13,500,000 (recorded arm's-length sale).

Current ownership dates to 2025 per recorded transfers.

2025-08-15: $120,000,000 from Labrecque Amber L Esq-ZBS Law LLP ( ) to 396-2 Selig Portfolio Holdings LLC (part of a 6-parcel sale; price is the whole deal), rec. 20250815000972

3 administrative transfers (no consideration), 2014 to 2025

2006-07-21: $13,500,000 from Darigold INC to Elliott Holding Company LLC, rec. 20060721001228

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 $62,656,000 (2011) to $93,909,000 (2026), up 50% over 15 years, per county tax rolls. The 2026 roll splits $93,909,000 into $29,060,100 land and $64,848,900 improvements.

Zoning: II U/85 (per King County)

Lot: 129,156 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Street surface: Paved

Floor and use mix: Office Building 333,510 SF; Basement, Parking 195,015 SF; Basement, Storage 5,337 SF (county building sections)

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

Permit history

2023-01-27: Remodel, declared value $500,000 (Screened), permit 6903696-CN

2022-11-09: Remodel (Screened), permit 6911366-CN

2022-08-10: Remodel (Screened), permit 6916327-CN

2020-01-14: Remodel, declared value $100,000 (Complete), permit 6741142-CN

2019-02-26: Remodel, declared value $876,000 (Complete), permit 6706525-CN

2017-02-22: Remodel, declared value $283,469 (Screened), permit 6580615

2016-04-27: Remodel, declared value $3,500,000 (Screened), permit 6528419

2016-01-13: Remodel, declared value $788,002 (Screened), permit 6509853

2014-08-19: Remodel, declared value $125,000 (Complete), permit 6413125

2014-07-24: Remodel, declared value $900,000 (Complete), permit 6414949

Source: King County permit records (newest first).