34310 9th Ave S, Federal Way, WA 98003

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

Imagery suggests: industrial warehouse. 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 AI estimate from public imagery; may be outdated.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 78 reachable small-bay industrial buildings in Federal Way. Larger than 90% of small-bay industrial buildings in Federal Way (median 11,294 SF), derived from assessor records.

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Building size
78,151 SF, King County Assessor
Lot size
229,372 SF, King County Assessor
Year built
1979, King County Assessor
Stories
1, King County Assessor
Buildings on parcel
3, King County Assessor
Predominant use
Building #2, King County Assessor
Assessed value
$17,021,300, per the King County Assessor (not a market appraisal)
Assessed value per building SF
$217.80/SF, derived from assessor records
Lot coverage
34%, derived from assessor records
Vintage
1970s vintage
Zoning
CE, King County
County use code
Warehouse
Construction (observed)
tilt up, 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: $19,423,004 (estimated market value), with a likely range of $15,012,500 to $19,617,234 (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.

Current ownership dates to 2006 (about 20 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

$6.53M$13.1M$19.6M$26.1M201120142017202020232026County 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 $6,685,000 (2011) to $17,021,300 (2026), up 155% over 15 years, per county tax rolls. The 2026 roll splits $17,021,300 into $5,046,100 land and $11,975,200 improvements.

Taxes

Permit history

Source: King County permit records (newest first).