10605 NE 185th St, Bothell, WA 98011

Commercial · Bothell · Seattle-Bellevue metro, WA

Imagery suggests: low-rise office. 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 AI estimate from public imagery; may be outdated.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 50 reachable commercial buildings in Bothell. Larger than 54% of commercial buildings in Bothell (median 24,717 SF), derived from assessor records.

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Building size: 34,115 SF, King County Assessor
Lot size: 58,885 SF, King County Assessor
Year built: 1988, King County Assessor
Stories: 3, King County Assessor
Predominant use: Mc, Rc, King County Assessor
Units: 49, King County Assessor
Assessed value: $7,504,000, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $219.96/SF, derived from assessor records
Lot coverage: 58%, derived from assessor records
Vintage: 1980s vintage
Zoning: GDC, King County
County use code: Retirement Facility
Construction (observed): wood frame, 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.

10600 NE 185th St, Bothell · 0 mi · 6,956 SF · built 1986 · assessed $275/SF
10726 Beardslee Blvd, Bothell · 0.1 mi · 19,070 SF · built 2023
10508 NE 185th St, Bothell · 0.1 mi · 4,764 SF · built 2005 · assessed $300/SF
10515 Woodinville Dr, Bothell · 0.2 mi · 1,298 SF · built 1964 · assessed $4,436/SF
10116 NE 183rd St, Bothell · 0.3 mi · 5,281 SF · built 2000
10120 NE 183rd St, Bothell · 0.3 mi · 3,284 SF · built 2000

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Sale history and market context

MakeMe Estimate: $8,058,135 (estimated market value), with a likely range of $6,828,447 to $9,749,576 (half of recent verified sales in this segment landed inside that range). Based on 33 verified arm's-length comparable sales (through 2026-05-29). Not an appraisal. How this estimate works.

Last sold: 2015-09-30 for $6,238,050 (recorded arm's-length sale).

Current ownership dates to 2021 (about 5 years) per recorded transfers.

2021-07-20: transfer from Welltower Propco Group LLC to Well Ca Wa Landlord LLC (non-market transfer), rec. 20210723001360

2015-09-30: $6,238,050 from Asc Bothell LLC to Sunrise Bothell Senior Living LLC, rec. 20151007000802

2011-01-21: $7,589,930 from Private party to Asc Bothell LLC, rec. 20110121002098

2005-03-09: $8,000,000 from Private party to Private party (non-market transfer), rec. 20050310001601

2004-06-15: $2,612,500 from Bothell Woodway LLC to Wame LLC C/O Aegis Assisted Living Corporate Offic…, rec. 20040615003138

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 $3,200,000 (2011) to $7,504,000 (2026), up 135% over 15 years, per county tax rolls. The 2026 roll splits $7,504,000 into $2,944,200 land and $4,559,800 improvements.

Zoning: GDC (per King County)

Lot: 58,885 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Street surface: Paved

Floor and use mix: Multiple Residences Assisted Living (Low Rise) 34,115 SF (county building sections)

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

Permit history

2018-10-11: Remodel, declared value $53,748 (Complete), permit BNR2018-20257

2017-11-14: Other, declared value $80,000 (Complete), permit MMF2017-17421

2017-11-14: Remodel, declared value $80,000 (Complete), permit BMF2017-17402

2016-05-20: Remodel, declared value $3,000,000 (Complete), permit BMF2015-11790

Source: King County permit records (newest first).