3015 NE 143rd St, Seattle, WA 98125

Multifamily · Seattle · Seattle-Bellevue metro, WA

Imagery suggests: garden apartments, 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 AI estimate from public imagery; may be outdated.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 5,391 reachable multifamily buildings in Seattle. Larger than 71% of multifamily buildings in Seattle (median 9,444 SF), derived from assessor records.

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Building size: 19,527 SF, King County Assessor
Lot size: 28,746 SF, King County Assessor
Year built: 1981, King County Assessor
Stories: 2, King County Assessor
Predominant use: Windinbrook Apts, King County Assessor
Units: 27, King County Assessor
Assessed value: $5,052,000, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $258.72/SF, derived from assessor records
Lot coverage: 68%, derived from assessor records
Vintage: 1980s vintage
Zoning: LR3 (M), King County
County use code: Apartment
Construction (observed): wood frame, 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.

3019 NE 143rd St, Seattle · 0 mi · 7,548 SF · built 1961 · assessed $283.65/SF
3011 NE 143rd St, Seattle · 0 mi · 7,518 SF · built 1980 · assessed $189.28/SF
3022 NE 140th St, Seattle · 0 mi · 56,074 SF · built 1985 · assessed $220.76/SF
3037 NE 143rd St, Seattle · 0 mi · 9,075 SF · built 1965 · assessed $312.73/SF
14033 32nd Ave NE, Seattle · 0.1 mi · 43,132 SF · built 1981 · assessed $156.91/SF
14051 32nd Ave NE, Seattle · 0.1 mi · 8,200 SF · built 1967 · assessed $224.39/SF

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Sale history and market context

MakeMe Estimate: $5,128,050 (estimated market value), with a likely range of $4,552,105 to $5,849,679 (half of recent verified sales in this segment landed inside that range). Based on 667 verified arm's-length comparable sales (through 2026-05-29). Not an appraisal. How this estimate works. About $190K per unit at the midpoint (27 units).

Current ownership dates to 1989 (about 37 years) per recorded transfers.

2021-01-07: transfer from Private party to Bing & Sandia LLC (part of a 2-parcel sale; price is the whole deal), rec. 20210211001387

1989-01-06: $963,000 from Private party to Private party (part of a 2-parcel sale; price is the whole deal), rec. 198901110883

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 $1,951,000 (2011) to $5,052,000 (2026), up 159% over 15 years, per county tax rolls. The 2026 roll splits $5,052,000 into $2,730,800 land and $2,321,200 improvements.

Zoning: LR3 (M) (per King County)

Lot: 28,746 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Street surface: Paved

Floor and use mix: Multiple Residence (Low Rise) 19,527 SF (county building sections)

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