9051 20th Ave SW, Seattle, WA 98106

Multifamily · Seattle · Seattle-Bellevue metro, WA

One of 5,391 reachable multifamily buildings in Seattle. Larger than 88% of multifamily buildings in Seattle (median 9,444 SF), derived from assessor records.

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Building size: 51,521 SF, King County Assessor
Lot size: 7,680 SF, King County Assessor
Year built: 2017, King County Assessor
Stories: 4, King County Assessor
Predominant use: Apts/Live-Work/Cml Space, King County Assessor
Units: 41, King County Assessor
Assessed value: $12,087,700, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $234.62/SF, derived from assessor records
Lot coverage: 671%, derived from assessor records
Vintage: 2010s vintage
Zoning: NC3-55 (M), King County
County use code: Apartment

Nearby comparable buildings

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

9049 20th Ave SW, Seattle · 0 mi · 26,455 SF · built 2019 · assessed $202.59/SF
9205 20th Ave SW, Seattle · 0.1 mi · 3,784 SF · built 1999 · assessed $290.70/SF
9020 20th Ave SW, Seattle · 0.1 mi · 8,771 SF · built 1967 · assessed $244.56/SF
9000 20th Ave SW, Seattle · 0.1 mi · 35,448 SF · built 1968
8854 Delridge Way SW, Seattle · 0.1 mi · 27,892 SF · built 2021 · assessed $204.04/SF
8840 Delridge Way SW, Seattle · 0.1 mi · 2,880 SF · built 1975 · assessed $294.44/SF

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Sale history and market context

MakeMe Estimate: $11,433,014 (estimated market value), with a likely range of $10,148,942 to $13,041,890 (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 $279K per unit at the midpoint (41 units).

Last sold: 2011-07-21 for $137,500 (recorded arm's-length sale).

Current ownership dates to 2015 (about 11 years) per recorded transfers.

2015-08-18: transfer from Private party to 20th Blue Stone LLC (non-market transfer), rec. 20150818000766

2013-09-27: $675,000 from FL 200 Investments LLC+FL 210 Investments LLC to Private party (part of a 2-parcel sale; price is the whole deal), rec. 20131004001024

2011-07-21: $137,500 from Sterling Savings Bank to FL 200 Investments LLC, rec. 20110729000297

2010-12-17: transfer from Van West Homes LLC to Sterling Savings Bank (non-market transfer), rec. 20101221001800

2007-06-01: $420,000 from Private party to Van West Homes LLC, rec. 20070613002175

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 $290,000 (2011) to $12,087,700 (2026), up 4068% over 15 years, per county tax rolls. The 2026 roll splits $12,087,700 into $691,200 land and $11,396,500 improvements.

Zoning: NC3-55 (M) (per King County)

Lot: 7,680 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Street surface: Paved

Floor and use mix: Apartment 34,050 SF; Basement, Parking 14,087 SF; Mixed Use Retail 3,384 SF (county building sections)

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

Permit history

2018-10-16: Remodel, declared value $3,000 (Screened), permit 6658759-CN

2018-03-23: Remodel, declared value $157,607 (Screened), permit 6641963

2015-07-08: Building, New, declared value $5,128,279 (Complete), permit 6342116

2013-01-23: Demolition (Complete), permit 6350331

Source: King County permit records (newest first).