3433 4th Ave S, Seattle, WA 98134

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

One of 1,229 reachable small-bay industrial buildings in Seattle. Larger than 30% of small-bay industrial buildings in Seattle (median 14,469 SF), derived from assessor records.

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Building size: 8,490 SF, King County Assessor
Lot size: 15,774 SF, King County Assessor
Year built: 1949, King County Assessor
Stories: 1, King County Assessor
Buildings on parcel: 2, King County Assessor
Predominant use: Ofc/Retail/Whse, King County Assessor
Assessed value: $594,500, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $70.02/SF, derived from assessor records
Lot coverage: 54%, derived from assessor records
Vintage: 1940s vintage
Zoning: MML U/85, King County
County use code: Warehouse
Construction (observed): masonry, 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.

3423 4th Ave S, Seattle · 0 mi · 2,760 SF · built 1948 · assessed $350.83/SF
3434 2nd Ave S, Seattle · 0 mi · 36,040 SF · built 1954 · assessed $200.33/SF
231 S Hinds St, Seattle · 0.1 mi · 6,000 SF · built 1964 · assessed $296.58/SF
3434 4th Ave S, Seattle · 0.1 mi · 39,600 SF · built 1952 · assessed $208.40/SF
3414 4th Ave S, Seattle · 0.1 mi · 40,460 SF · built 1952 · assessed $202.08/SF
3454 4th Ave S, Seattle · 0.1 mi · 34,562 SF · built 1974 · assessed $236.31/SF

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Sale history and market context

MakeMe Estimate: $1,029,989 (estimated market value), with a likely range of $888,187 to $1,149,092 (half of recent verified sales in this segment landed inside that range). Based on 96 verified arm's-length comparable sales (through 2026-05-29). Not an appraisal. How this estimate works.

Current ownership dates to 2020 (about 6 years) per recorded transfers.

2020-07-10: $2,000,000 from Private party to Amp Sodo LLC (part of a 2-parcel sale; price is the whole deal), rec. 20200710002609

1997-04-10: $550,000 from Private party to Private party (part of a 2-parcel sale; price is the whole deal), rec. 199704111114

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 $976,300 (2011) to $594,500 (2026), down 39% over 15 years, per county tax rolls. The 2026 roll splits $594,500 into $368,200 land and $226,300 improvements.

Zoning: MML U/85 (per King County)

Lot: 15,774 sq ft

Site notes: Contamination noted

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Floor and use mix: Warehouse, Distribution 4,725 SF; Storage Warehouse 2,640 SF; Office Building 1,125 SF (county building sections)

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