17429 Vashon Hwy SW, Vashon, WA 98070

Office · Vashon · Seattle-Bellevue metro, WA

Imagery suggests: generic commercial building. 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 AI estimate from public imagery; may be outdated.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 22 reachable office buildings in Vashon. Larger than 45% of office buildings in Vashon (median 3,088 SF), derived from assessor records.

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Building size: 2,753 SF, King County Assessor
Lot size: 11,700 SF, King County Assessor
Year built: 1986, King County Assessor
Stories: 1, King County Assessor
Predominant use: Office Building, King County Assessor
Assessed value: $832,500, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $302.40/SF, derived from assessor records
Lot coverage: 24%, derived from assessor records
Vintage: 1980s vintage
Zoning: CB, King County
County use code: Office Building
Construction (observed): wood frame, AI estimate from public imagery
Parking (observed): surface lot, AI estimate from public imagery

Nearby comparable buildings

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

17407 Vashon Hwy SW, Vashon · 0 mi · 1,396 SF · built 1930 · assessed $233.60/SF
9910 SW Bank Rd, Vashon · 0 mi · 3,649 SF · built 1960 · assessed $295.40/SF
17412 Vashon Hwy SW, Vashon · 0 mi · 3,840 SF · built 1946 · assessed $165.13/SF
17331 Vashon Hwy SW, Vashon · 0.1 mi · 2,424 SF · built 1918 · assessed $119.97/SF
9929 SW Bank Rd, Vashon · 0.1 mi · 5,795 SF · built 1996 · assessed $204.66/SF
10011 SW Bank Rd, Vashon · 0.1 mi · 2,400 SF · built 1974

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Sale history and market context

MakeMe Estimate: $952,080 (estimated market value), with a likely range of $927,139 to $1,257,960 (half of recent verified sales in this segment landed inside that range). Based on 185 verified arm's-length comparable sales (through 2026-05-29). Not an appraisal. How this estimate works.

Last sold: 2018-05-03 for $1,025,000 (recorded arm's-length sale).

Current ownership dates to 2018 (about 8 years) per recorded transfers.

2018-05-03: $1,025,000 from Private party to Vashon-Maury Island Real Estate LLC, rec. 20180509000449

2005-01-03: transfer from Private party to Private party (non-market transfer), rec. 20050105002005

2004-12-23: $600,000 from Private party to Private party, rec. 20050105002004

1999-12-23: $200,000 from Vornbrock Properties to Private party, rec. 20000110001706

2 administrative transfers (no consideration), 1998 to 1999

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 $651,800 (2011) to $832,500 (2026), up 28% over 15 years, per county tax rolls. The 2026 roll splits $832,500 into $315,900 land and $516,600 improvements.

Zoning: CB (per King County)

Lot: 11,700 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Floor and use mix: Office Building 2,753 SF (county building sections)

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

17429 Vashon Hwy SW, Vashon, WA 98070

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Nearby comparable buildings

Sale history and market context

Value over time

Land, site, and value history

Taxes

Permit history