401 S 43rd St, Renton, WA 98055

Office · Renton · Seattle-Bellevue metro, WA

Imagery suggests: low-rise multi-tenant office, 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 AI estimate from public imagery; may be outdated.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 227 reachable office buildings in Renton. Larger than 63% of office buildings in Renton (median 7,789 SF), derived from assessor records.

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Building size
11,880 SF, King County Assessor
Lot size
35,090 SF, King County Assessor
Year built
1977, King County Assessor
Stories
2, King County Assessor
Predominant use
Medical Office, King County Assessor
Assessed value
$0, per the King County Assessor (not a market appraisal)
Lot coverage
34%, derived from assessor records
Vintage
1970s vintage
Zoning
CO, King County
County use code
Medical/Dental Office
Construction (observed)
masonry, AI estimate from public imagery
Parking (observed)
none visible, 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.

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Sale history and market context

Current ownership dates to 1991 (about 35 years) per recorded transfers.

Source: King County recorded sales extract; buyer and seller shown only when a company or organization. Individual names are withheld.

Land, site, and value history

Permit history

Source: King County permit records (newest first).