6421 229th Ave SE, Issaquah, WA 98029

Small-Bay Industrial · Issaquah · Seattle-Bellevue metro, WA

Imagery suggests: service industrial 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 AI estimate from public imagery; may be outdated.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 59 reachable small-bay industrial buildings in Issaquah. Larger than 29% of small-bay industrial buildings in Issaquah (median 14,796 SF), derived from assessor records.

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Building size: 8,958 SF, King County Assessor
Lot size: 20,038 SF, King County Assessor
Year built: 1986, King County Assessor
Stories: 1, King County Assessor
Buildings on parcel: 2, King County Assessor
Predominant use: Warehouse, King County Assessor
Assessed value: $1,148,900, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $128.25/SF, derived from assessor records
Lot coverage: 45%, derived from assessor records
Vintage: 1980s vintage
Zoning: IC-CI, King County
County use code: Industrial(Lignt)
Construction (observed): masonry, AI estimate from public imagery
Parking (observed): surface lot, AI estimate from public imagery
Frontage (observed): mid block, AI estimate from public imagery

Nearby comparable buildings

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

6405 229th Ave SE, Issaquah · 0 mi · 7,500 SF · built 1997 · assessed $450/SF
22819 SE Issaquah Fall City Rd, Issaquah · 0 mi · 11,481 SF · built 1986 · assessed $268.82/SF
975 1st Ave NE, Issaquah · 0.3 mi · 10,517 SF · built 2018 · assessed $456/SF
200 NE Juniper St, Issaquah · 0.3 mi · 7,043 SF · built 1934 · assessed $215.25/SF
60 NW Gilman Blvd, Issaquah · 0.3 mi · 23,212 SF · built 1987 · assessed $358.29/SF
80 NE Gilman Blvd, Issaquah · 0.4 mi · 8,480 SF · built 1994 · assessed $376.20/SF

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Sale history and market context

MakeMe Estimate: $2,155,782 (estimated market value), with a likely range of $1,858,989 to $2,405,067 (half of recent verified sales in this segment landed inside that range). Based on 96 verified arm's-length comparable sales (through 2026-05-29). Not an appraisal. How this estimate works.

Last sold: 1985-11-01 for $175,000 (recorded arm's-length sale).

Current ownership dates to 1985 (about 41 years) per recorded transfers.

2006-10-27: transfer from S&S Partnership to S&S Partners LLC (non-market transfer), rec. 20061108003215

1985-11-01: $175,000 from Private party to S & S Partnership, rec. 198511010877

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 $617,000 (2011) to $1,148,900 (2026), up 86% over 15 years, per county tax rolls. The 2026 roll splits $1,148,900 into $1,001,900 land and $147,000 improvements.

Zoning: IC-CI (per King County)

Lot: 20,038 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Street surface: Paved

Floor and use mix: Storage Warehouse 8,958 SF (county building sections)

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