707 S Riverside Dr, Seattle, WA 98108

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

Imagery suggests: light industrial, 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 AI estimate from public imagery; may be outdated.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 1,229 reachable small-bay industrial buildings in Seattle. Larger than 55% of small-bay industrial buildings in Seattle (median 14,469 SF), derived from assessor records.

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Building size: 16,360 SF, King County Assessor
Lot size: 21,203 SF, King County Assessor
Year built: 1976, King County Assessor
Stories: 2, King County Assessor
Predominant use: Storage Warehouse, King County Assessor
Assessed value: $3,323,800, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $203.17/SF, derived from assessor records
Lot coverage: 77%, derived from assessor records
Vintage: 1970s 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.

722 S Portland St, Seattle · 0 mi · 14,800 SF · built 1958 · assessed $81.01/SF
7724 7th Ave S, Seattle · 0 mi · 5,203 SF · built 1940 · assessed $176.34/SF
736 S Chicago St, Seattle · 0 mi · 5,568 SF · built 1966 · assessed $305.48/SF
722 S Chicago St, Seattle · 0.1 mi · 4,000 SF · built 1971 · assessed $340.48/SF
700 S Chicago St, Seattle · 0.1 mi · 16,200 SF · built 1979 · assessed $232.90/SF
640 S Riverside Dr, Seattle · 0.1 mi · 3,060 SF · built 1960

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Sale history and market context

MakeMe Estimate: $4,657,584 (estimated market value), with a likely range of $4,016,362 to $5,196,167 (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.

Last sold: 2018-11-20 for $2,200,000 (recorded arm's-length sale).

Current ownership dates to 2018 (about 8 years) per recorded transfers.

2018-11-20: $2,200,000 from Helix Partners LLC to 707mbs LLC, rec. 20181130000366

2013-07-30: transfer from Private party to Helix Partners LLC (non-market transfer), rec. 20130802001189

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 $999,600 (2011) to $3,323,800 (2026), up 233% over 15 years, per county tax rolls. The 2026 roll splits $3,323,800 into $1,219,100 land and $2,104,700 improvements.

Zoning: MML U/85 (per King County)

Lot: 21,203 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Floor and use mix: Storage Warehouse 11,040 SF; Office Building 1,400 SF (county building sections)

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