423 S Horton St, Seattle, WA 98134

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

Imagery suggests: industrial flex. 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 AI estimate from public imagery; may be outdated.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 1,229 reachable small-bay industrial buildings in Seattle. Larger than 41% of small-bay industrial buildings in Seattle (median 14,469 SF), derived from assessor records.

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Building size
11,560 SF, King County Assessor
Lot size
14,040 SF, King County Assessor
Year built
1919, King County Assessor
Stories
2, King County Assessor
Buildings on parcel
2, King County Assessor
Predominant use
Whse Eq, King County Assessor
Assessed value
$1,739,800, per the King County Assessor (not a market appraisal)
Assessed value per building SF
$150.50/SF, derived from assessor records
Lot coverage
82%, derived from assessor records
Vintage
pre-war vintage
Zoning
MML U/85, King County
County use code
Warehouse
Construction (observed)
metal, 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.

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Sale history and market context

MakeMe Estimate: $2,667,419 (estimated market value), with a likely range of $2,061,712 to $2,694,094 (half of recent verified sales in this segment landed inside that range). Based on 81 verified arm's-length comparable sales (through 2026-05-29). Not an appraisal. How this estimate works.

Value over time

$752K$1.5M$2.25M$3.01M201120142017202020232026County appraised valueEstimated value (modeled range)

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 $1,116,200 (2011) to $1,739,800 (2026), up 56% over 15 years, per county tax rolls. The 2026 roll splits $1,739,800 into $1,263,600 land and $476,200 improvements.

Taxes

Permit history

Source: King County permit records (newest first).