2233 1st Ave S, Seattle, WA 98134

Small-Bay Industrial · Seattle · Seattle-Bellevue metro, WA

Imagery suggests: industrial warehouse. 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 AI estimate from public imagery; may be outdated.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 1,229 reachable small-bay industrial buildings in Seattle. Larger than 64% of small-bay industrial buildings in Seattle (median 14,469 SF), derived from assessor records.

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Building size: 20,930 SF, King County Assessor
Lot size: 8,880 SF, King County Assessor
Year built: 1910, King County Assessor
Stories: 2, King County Assessor
Predominant use: Warehouse, King County Assessor
Assessed value: $3,815,600, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $182.30/SF, derived from assessor records
Lot coverage: 236%, derived from assessor records
Vintage: pre-war vintage
Zoning: UI U/85, King County
County use code: Warehouse
Construction (observed): tilt up, 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.

2245 1st Ave S, Seattle · 0 mi · 61,726 SF · built 1930 · assessed $202.15/SF
2223 Occidental Ave S, Seattle · 0 mi · 6,000 SF · built 1930 · assessed $253/SF
2230 1st Ave S, Seattle · 0 mi · 14,700 SF · built 1925 · assessed $248.71/SF
2250 1st Ave S, Seattle · 0 mi · 17,459 SF · built 1953 · assessed $296.37/SF
2203 1st Ave S, Seattle · 0.1 mi · 144,050 SF · built 1926 · assessed $152.18/SF
1950 1st Ave S, Seattle · 0.1 mi · 27,000 SF · built 1916

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Sale history and market context

MakeMe Estimate: $4,971,496 (estimated market value), with a likely range of $3,842,587 to $5,021,211 (half of recent verified sales in this segment landed inside that range). Based on 81 verified arm's-length comparable sales (through 2026-05-29). Not an appraisal. How this estimate works.

Last sold: 2016-04-04 for $3,200,000 (recorded arm's-length sale).

Current ownership dates to 2025 per recorded transfers.

2025-12-18: $7,300,000 from Cedarstrand Properties LLC+2233 1st Avenue LLC to Sea Otter Group LLC (part of a 2-parcel sale; price is the whole deal), rec. 20251218000702

2018-07-19: transfer from City Investors I LLC to 2233 1st Avenue LLC (non-market transfer), rec. 20180719000765

2016-04-04: $3,200,000 from Private party to City Investors I LLC, rec. 20160406000931

2010-08-18: transfer from Private party to Private party (non-market transfer), rec. 20100819000592

2007-07-21: $3,000,000 from Private party to Check LLC (non-market transfer), rec. 20070731000402

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 $1,005,900 (2011) to $3,815,600 (2026), up 279% over 15 years, per county tax rolls. The 2026 roll splits $3,815,600 into $1,065,600 land and $2,750,000 improvements.

Zoning: UI U/85 (per King County)

Lot: 8,880 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Floor and use mix: Office Building 8,549 SF; Basement, Parking 5,874 SF; Industrial Light Manufacturing 3,697 SF; Basement, Office 1,440 SF; Retail Store 1,370 SF (county building sections)

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

Permit history

2025-11-11: Remodel, declared value $160,000, permit 7116069-CN

2017-04-20: Remodel, declared value $251,000 (Complete), permit 6486340

2008-02-26: Remodel, declared value $200,000 (Defunct), permit 6152860

1997-12-05: Remodel, declared value $70,000 (Complete), permit 695976

Source: King County permit records (newest first).