21750 230th Ave SE, Maple Valley, WA 98038

Office · Maple Valley · Seattle-Bellevue metro, WA

Imagery suggests: low-rise office, appears multi-tenant. 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 AI estimate from public imagery; may be outdated.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 25 reachable office buildings in Maple Valley. Larger than 16% of office buildings in Maple Valley (median 5,040 SF), derived from assessor records.

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Building size: 2,828 SF, King County Assessor
Lot size: 16,731 SF, King County Assessor
Year built: 1985, King County Assessor
Stories: 2, King County Assessor
Predominant use: Offices, King County Assessor
Assessed value: $608,800, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $215.28/SF, derived from assessor records
Lot coverage: 17%, derived from assessor records
Vintage: 1980s vintage
Zoning: RA-5, 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
Frontage (observed): interior, AI estimate from public imagery

Nearby comparable buildings

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

21730 Dorre Don Way SE, Maple Valley · 0 mi · 14,820 SF · built 2018 · assessed $263.73/SF
22815 SE 216th Way, Maple Valley · 0 mi · 2,204 SF · built 1955 · assessed $270.05/SF
21625 Maxwell Rd SE, Maple Valley · 0.1 mi · 616 SF · built 2018 · assessed $650/SF
21629 Renton Maple Valley Rd SE, Maple Valley · 0.2 mi · 2,472 SF · built 1906 · assessed $284.99/SF
22520 SE 218th St, Maple Valley · 0.2 mi · 3,900 SF · built 1907 · assessed $183.85/SF
22023 SE Wax Rd, Maple Valley · 1.2 mi · 5,040 SF · built 1986 · assessed $208.49/SF

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Sale history and market context

MakeMe Estimate: $890,803 (estimated market value), with a likely range of $867,467 to $1,176,996 (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: 2021-12-16 for $600,000 (recorded arm's-length sale).

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

2021-12-16: $600,000 from Capstone Homes INC to Private party, rec. 20211217000872

1988-06-23: $135,000 from Private party to Capstone Homes INC (part of a 2-parcel sale; price is the whole deal), rec. 198807110000

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 $335,200 (2011) to $608,800 (2026), up 82% over 15 years, per county tax rolls. The 2026 roll splits $608,800 into $138,000 land and $470,800 improvements.

Zoning: RA-5 (per King County)

Lot: 16,731 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Street surface: Paved

Floor and use mix: Office Building 2,828 SF (county building sections)

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