5100 S Dawson St, Seattle, WA 98118

Office · Seattle · Seattle-Bellevue metro, WA

Imagery suggests: single-story professional office. AI estimate from public imagery. In recent public imagery (2026-06), the building appears serviceable with visible wear. AI estimate from public imagery; may be outdated.

One of 957 reachable office buildings in Seattle. Larger than 28% of office buildings in Seattle (median 20,410 SF), derived from assessor records.

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Building size
6,400 SF, King County Assessor
Lot size
7,556 SF, King County Assessor
Year built
1960, King County Assessor
Stories
2, King County Assessor
Buildings on parcel
2, King County Assessor
Predominant use
Office Building, King County Assessor
Assessed value
$1,158,900, per the King County Assessor (not a market appraisal)
Assessed value per building SF
$181.08/SF, derived from assessor records
Lot coverage
85%, derived from assessor records
Vintage
1960s vintage
Zoning
NC1-40 (M), King County
County use code
Office Building
Parking (observed)
street only, 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

MakeMe Estimate: $1,438,835 (estimated market value), with a likely range of $1,401,143 to $1,901,097 (half of recent verified sales in this segment landed inside that range). Based on 185 verified arm's-length comparable sales (through 2026-05-29). Not an appraisal. How this estimate works.

Last sold: 2025-09-17 for $1,495,000 (recorded arm's-length sale).

Current ownership dates to 2025 per recorded transfers.

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

Value over time

$524K$1.05M$1.57M$2.09M201120142017202020232026$1.5MCounty appraised valueEstimated value (modeled range)Recorded sale

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 $741,400 (2011) to $1,158,900 (2026), up 56% over 15 years, per county tax rolls. The 2026 roll splits $1,158,900 into $680,000 land and $478,900 improvements.

Taxes