31813 21st Ave SW, Federal Way, WA 98023
Commercial · Federal Way · Seattle-Bellevue metro, WA
Imagery suggests: mobile home park, appears multi-tenant. 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 AI estimate from public imagery; may be outdated.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 118 reachable commercial buildings in Federal Way. Larger than 3% of commercial buildings in Federal Way (median 26,548 SF), derived from assessor records.
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Claim or manage this building- Building size
- 1,378 SF, King County Assessor
- Lot size
- 216,122 SF, King County Assessor
- Year built
- 1951, King County Assessor
- Stories
- 1, King County Assessor
- Predominant use
- Laundry, Restroom & Storage, King County Assessor
- Assessed value
- $4,800,000, per the King County Assessor (not a market appraisal)
- Assessed value per building SF
- $3,483/SF, derived from assessor records
- Lot coverage
- 1%, derived from assessor records
- Vintage
- 1950s vintage
- Zoning
- RM3600, King County
- County use code
- Mobile Home Park
- Construction (observed)
- metal, AI estimate from public imagery
- Parking (observed)
- surface lot, AI estimate from public imagery
- Frontage (observed)
- interior, AI estimate from public imagery
Nearby comparable buildings
Same building type, by distance. Assessor facts only; not an opinion of value.
- 2800 SW 320th St, Federal Way · 0.3 mi · 153,003 SF · built 1975
- 1415 SW 314th St, Federal Way · 0.5 mi · 99,234 SF · built 2010
- 2626 SW 327th St, Federal Way · 0.5 mi · 67,000 SF · built 2023
- 1405 SW 312th St, Federal Way · 0.5 mi · 10,094 SF · built 1964
- 1060 SW 320th St, Federal Way · 0.6 mi · 4,536 SF · built 1971 · assessed $376.46/SF
- 1310 SW 325th Pl, Federal Way · 0.6 mi · 51,446 SF · built 1990
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