1916 Boren Ave, Seattle, WA 98101
Office · Seattle · Seattle-Bellevue metro, WA
One of 957 reachable office buildings in Seattle. Larger than 90% of office buildings in Seattle (median 20,410 SF), derived from assessor records.
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- Building size
- 330,385 SF, King County Assessor
- Lot size
- 22,420 SF, King County Assessor
- Year built
- 2023, King County Assessor
- Stories
- 11, King County Assessor
- Predominant use
- Lab/Office Building, King County Assessor
- Assessed value
- $126,225,500, per the King County Assessor (not a market appraisal)
- Assessed value per building SF
- $382.06/SF, derived from assessor records
- Lot coverage
- 1474%, derived from assessor records
- Vintage
- 2020s vintage
- Zoning
- DMC 240/290-440, King County
- County use code
- Office Building
- Construction (observed)
- masonry, AI estimate from public imagery
Nearby comparable buildings
Same building type, by distance. Assessor facts only; not an opinion of value.
- 1930 Boren Ave, Seattle · 0 mi · 199,398 SF · built 2020 · assessed $625.32/SF
- 1920 Terry Ave, Seattle · 0.1 mi · 512,883 SF · built 2019 · assessed $595.59/SF
- 1007 Stewart St, Seattle · 0.1 mi · 501,704 SF · built 2017 · assessed $222.12/SF
- 1900 9th Ave, Seattle · 0.1 mi · 299,070 SF · built 2004 · assessed $512.96/SF
- 1701 Minor Ave, Seattle · 0.1 mi · 413,715 SF · built 1980 · assessed $126.02/SF
- 1800 9th Ave, Seattle · 0.1 mi · 480,840 SF · built 1990 · assessed $122.30/SF
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Sale history and market context
MakeMe Estimate: $122,076,246 (estimated market value), with a likely range of $110,326,668 to $159,059,572 (half of recent verified sales in this segment landed inside that range). Based on 55 verified arm's-length comparable sales (through 2026-05-29). Not an appraisal. How this estimate works.
Last sold: 2017-05-08 for $25,000,000 (recorded arm's-length sale).
Current ownership dates to 2021 (about 5 years) per recorded transfers.
- 2022-12-13: $250,000 from Emf Enterprises LLC to Sbob LLC (part of a 2-parcel sale; price is the whole deal), rec. 20221215000829
- 2021-07-23: $49,000,000 from Gzi Boren LLC to Sbob LLC (part of a 2-parcel sale; price is the whole deal), rec. 20210723002308
- 2020-12-22: transfer from Gzi Boren LLC to Seattle City of (part of a 2-parcel sale; price is the whole deal), rec. 20210204000021
- 2017-05-08: $25,000,000 from Concerto Investments LLC to Gzi Boren LLC, rec. 20170516000377
- 2008-02-11: transfer from Private party to Concerto Investments LLC (non-market transfer), rec. 20080214002060
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
Assessed value moved from $9,121,000 (2011) to $126,225,500 (2026), up 1284% over 15 years, per county tax rolls. The 2026 roll splits $126,225,500 into $18,718,400 land and $107,507,100 improvements.
- Zoning: DMC 240/290-440 (per King County)
- Lot: 22,420 sq ft
- Water: Water District (per King County)
- Sewer: Public (per King County)
- Access: Public
- Street surface: Paved
- Floor and use mix: Laboratories 131,160 SF; Office Building 107,096 SF; Underground Parking Structure 70,162 SF; Basement, Storage 12,430 SF; Storage Warehouse 9,537 SF; Retail Store 4,888 SF (county building sections)
- County districts report (schools, fire, sewer, council; on kingcounty.gov)