345 S 312th St, Federal Way, WA 98003

Commercial · Federal Way · Seattle-Bellevue metro, WA

Imagery suggests: community building. 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 AI estimate from public imagery; may be outdated.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 118 reachable commercial buildings in Federal Way. Larger than 12% of commercial buildings in Federal Way (median 26,548 SF), derived from assessor records.

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Building size
2,844 SF, King County Assessor
Lot size
17,806 SF, King County Assessor
Year built
1951, King County Assessor
Stories
1, King County Assessor
Buildings on parcel
2, King County Assessor
Predominant use
Sfr, King County Assessor
Assessed value
$663,000, per the King County Assessor (not a market appraisal)
Assessed value per building SF
$233.12/SF, derived from assessor records
Lot coverage
16%, derived from assessor records
Vintage
1950s vintage
Zoning
RS7.2, King County
County use code
Single Family(Res Use/Zone)
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: $758,871 (estimated market value), with a likely range of $643,066 to $927,839 (half of recent verified sales in this segment landed inside that range). Based on 139 verified arm's-length comparable sales (through 2026-05-29). Not an appraisal. How this estimate works.

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

Value over time

$261K$521K$782K$1.04M201120142017202020232026County 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 $156,000 (2011) to $663,000 (2026), up 325% over 15 years, per county tax rolls. The 2026 roll splits $663,000 into $175,000 land and $488,000 improvements.

Taxes