519 12th Ave S, Seattle, WA 98144

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

Imagery suggests: small-bay flex, appears multi-tenant. AI estimate from public imagery. In recent public imagery (2026-06), the building shows signs of deferred maintenance. AI estimate from public imagery; may be outdated.

One of 1,229 reachable small-bay industrial buildings in Seattle. Larger than 61% of small-bay industrial buildings in Seattle (median 14,469 SF), derived from assessor records.

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Building size
19,376 SF, King County Assessor
Lot size
9,600 SF, King County Assessor
Year built
1927, King County Assessor
Stories
2, King County Assessor
Predominant use
Manufacturing, King County Assessor
Assessed value
$2,925,500, per the King County Assessor (not a market appraisal)
Assessed value per building SF
$150.99/SF, derived from assessor records
Lot coverage
202%, derived from assessor records
Vintage
pre-war vintage
Zoning
DMR/C 75/75-170, King County
County use code
Industrial(Gen Purpose)
Construction (observed)
masonry, AI estimate from public imagery
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: $4,354,554 (estimated market value), with a likely range of $3,057,948 to $4,822,673 (half of recent verified sales in this segment landed inside that range). Based on 86 verified arm's-length comparable sales (through 2026-05-29). Not an appraisal. How this estimate works.

Last sold: 2024-08-01 for $5,500,000 (recorded arm's-length sale).

Current ownership dates to 2024 (about 2 years) 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

$1.49M$2.97M$4.46M$5.94M201120142017202020232026$5.5MCounty 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 $1,650,000 (2011) to $2,925,500 (2026), up 77% over 15 years, per county tax rolls. The 2026 roll splits $2,925,500 into $2,688,000 land and $237,500 improvements.

Taxes