528 18th Ave, Seattle, WA 98122

Office · Seattle · Seattle-Bellevue metro, WA

County valuation incomplete: County building evidence or valuation-model support is incomplete here, so this page shows county public facts and private owner claim tools without a MakeMe Estimate.

One of 1,701 reachable office buildings in Seattle.

Building size (estimated)
2,304 SF, estimated from lot coverage
Lot size
5,120 SF, King County Assessor
Predominant use
Medical/Dental Office, King County Assessor
Assessed value
$614,400, per the King County Assessor (not a market appraisal)
Zoning
MIO-37-NR3, King County
County use code
Medical/Dental Office

Nearby comparable buildings

Same building type, by distance. Assessor facts only; not an opinion of value.

County valuation incomplete

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Sale history and market context

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

Value over time

$0$200K$400K$600K$800K201120142017202020232026$614KCounty assessed value

Dark line: county assessed value per King County tax rolls.

Land, site, and value history

Assessed value moved from $359,400 (2011) to $614,400 (2026), up 71% over 15 years, per county tax rolls. The 2026 roll splits $614,400 into $614,400 land and $0 improvements.

Taxes