2203 E Union St, Seattle, WA 98122

Multifamily · Seattle · Seattle-Bellevue metro, WA

Imagery suggests: mid-rise multifamily, 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 AI estimate from public imagery; may be outdated.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 94% of multifamily buildings in Seattle (median 9,444 SF), derived from assessor records.

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Building size: 105,012 SF, King County Assessor
Lot size: 16,185 SF, King County Assessor
Year built: 2015, King County Assessor
Stories: 6, King County Assessor
Predominant use: Mix Use Apartments, King County Assessor
Units: 93, King County Assessor
Assessed value: $24,118,400, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $229.67/SF, derived from assessor records
Lot coverage: 649%, derived from assessor records
Vintage: 2010s vintage
Zoning: NC2P-75 (M), King County
County use code: Apartment(Mixed Use)
Parking (observed): structured, 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.

2106 E Union St, Seattle · 0 mi · 2,930 SF · built 2009 · assessed $505.09/SF
2220 E Union St, Seattle · 0.1 mi · 184,974 SF · built 2017 · assessed $215.61/SF
2407 E Union St, Seattle · 0.1 mi · 43,995 SF · built 2015 · assessed $201.79/SF
1435 22nd Ave, Seattle · 0.1 mi · 3,840 SF · built 1906 · assessed $310.94/SF
2006 E Union St, Seattle · 0.1 mi · 2,095 SF · built 1900 · assessed $370.69/SF
943 24th Ave, Seattle · 0.1 mi · 5,206 SF · built 1901 · assessed $320.02/SF

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Sale history and market context

MakeMe Estimate: $30,479,651 (estimated market value), with a likely range of $27,840,248 to $31,455,251 (half of recent verified sales in this segment landed inside that range). Based on 98 verified arm's-length comparable sales (through 2026-05-29). Not an appraisal. How this estimate works. About $328K per unit at the midpoint (93 units).

Last sold: 2021-10-12 for $41,500,000 (recorded arm's-length sale).

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

2021-10-12: $41,500,000 from East Union 23 LLC to Central Seattle LP, rec. 20211012001192

2014-01-21: $3,800,000 from 23rd Avenue Capital Management LLC to East Union 23 LLC, rec. 20140122001363

2012-12-13: $2,300,000 from 2203 East Union LLC to 23rd Avenue Capital Management LLC, rec. 20121214002385

2006-08-28: $1,040,000 from Private party to 2203 East Union LLC (non-market transfer), rec. 20060830001500

2002-08-05: $970,000 from Private party to Private party, rec. 20020816001811

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 $21,640,500 (2017) to $24,118,400 (2026), up 11% over 9 years, per county tax rolls. The 2026 roll splits $24,118,400 into $0 land and $24,118,400 improvements.

Zoning: NC2P-75 (M) (per King County)

Lot: 16,185 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Street surface: Paved

Floor and use mix: Apartment 69,566 SF; Basement, Parking 30,288 SF; Mixed Use Retail 4,580 SF; Mixed Use Office 578 SF (county building sections)

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

Permit history

2026-02-06: Electrical (Screened), permit 7128338-EL

2026-02-02: Electrical (Screened), permit 7127476-EL

2026-01-30: Electrical (Screened), permit 7127322-EL

2026-01-27: Electrical (Screened), permit 7126678-EL

2026-01-15: Electrical (Screened), permit 7125112-EL

2025-11-04: Remodel, declared value $75,000 (Screened), permit 7094221-CN

2023-10-05: Electrical, declared value $4,000 (Complete), permit 6989768-EL

2023-08-21: Electrical, declared value $40,000 (Complete), permit 6982034-EL

2023-07-12: Electrical, declared value $700 (Complete), permit 6974942-EL

2018-05-21: Remodel, declared value $275,000 (Complete), permit 6639221-CN

Source: King County permit records (newest first).