350 1st Ave W, Seattle, WA 98119

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 AI estimate from public imagery; may be outdated.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: 96,529 SF, King County Assessor
Lot size: 14,160 SF, King County Assessor
Year built: 2017, King County Assessor
Stories: 6, King County Assessor
Predominant use: Apartment, King County Assessor
Units: 75, King County Assessor
Assessed value: $17,836,400, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $184.78/SF, derived from assessor records
Lot coverage: 682%, derived from assessor records
Vintage: 2010s vintage
Zoning: SM-UP 85 (M), King County
County use code: Apartment(Mixed Use)
Construction (observed): masonry, AI estimate from public imagery
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.

307 Queen Anne Ave N, Seattle · 0 mi · 17,076 SF · built 1925 · assessed $302/SF
300 1st Ave W, Seattle · 0 mi · 185,048 SF · built 2016 · assessed $281.08/SF
315 1st Ave W, Seattle · 0.1 mi · 80,592 SF · built 2001 · assessed $246.92/SF
7 Harrison St, Seattle · 0.1 mi · 25,800 SF · built 1908 · assessed $265.48/SF
301 Queen Anne Ave N, Seattle · 0.1 mi · 36,194 SF · built 2016 · assessed $443.06/SF
320 Queen Anne Ave N, Seattle · 0.1 mi · 32,673 SF · built 2020 · assessed $520.43/SF

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Sale history and market context

MakeMe Estimate: $19,234,568 (estimated market value), with a likely range of $17,568,939 to $19,850,232 (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 $256K per unit at the midpoint (75 units).

Last sold: 2015-11-10 for $4,800,000 (recorded arm's-length sale).

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

2015-11-10: $4,800,000 from Private party to 19 W Harrison LLC, rec. 20151110000760

2015-09-22: transfer from Private party to Seattle City of (non-market transfer), rec. 20150925000628

1994-02-28: $835,000 from Seattle First National Bank to Private party, rec. 199403042128

1993-07-30: $780,000 from Private party to Seattle First National Bank (non-market transfer), rec. 199307303413

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 $29,066,336 (2018) to $17,836,400 (2026), down 39% over 8 years, per county tax rolls. The 2026 roll splits $17,836,400 into $0 land and $17,836,400 improvements.

Zoning: SM-UP 85 (M) (per King County)

Lot: 14,160 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Street surface: Paved

Floor and use mix: Apartment 67,523 SF; Underground Parking Structure 21,812 SF; Retail Store 7,194 SF (county building sections)

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

Permit history

2025-07-16: Remodel, declared value $12,508, permit 7042488-CN

2024-08-07: Electrical, declared value $6,000 (Screened), permit 7039729-EL

2017-12-07: Remodel, declared value $30,000 (Screened), permit 6610863

2016-03-04: Building, New, declared value $10,836,537 (Complete), permit 6459262

2016-02-17: Building, New, declared value $250,000 (Complete), permit 6460932

2016-02-17: Demolition (Complete), permit 6461960

Source: King County permit records (newest first).