1305 S 312th St, Federal Way, WA 98003
Office · Federal Way · Seattle-Bellevue metro, WA
One of 189 reachable office buildings in Federal Way. Larger than 16% of office buildings in Federal Way (median 9,780 SF), derived from assessor records.
- Usable building area
- 3,556 SF, King County Assessor
- Lot size
- 10,290 SF, King County Assessor
- Year built
- 1963, King County Assessor
- Stories
- 2, King County Assessor
- Predominant use
- Condominium(office), King County Assessor
- Assessed value
- $188,100, per the King County Assessor (not a market appraisal)
- Assessed value per usable SF
- $52.90/SF, derived from assessor records
- Usable area / lot
- 0.35, derived from assessor records
- Vintage
- 1960s vintage
- Zoning
- CF, King County
- County use code
- Condominium(Office)
Nearby comparable buildings
Same building type, by distance. Assessor facts only; not an opinion of value.
- 1436 S 312th St, Federal Way · 0.1 mi · 7,749 SF · built 1960 · assessed $325/SF
- 1627 S 312th St, Federal Way · 0.2 mi · 4,680 SF · built 1960 · assessed $300/SF
- 31003 Pacific Hwy S, Federal Way · 0.2 mi · 3,296 SF · built 1954 · assessed $350/SF
- 1711 S 312th St, Federal Way · 0.2 mi · 3,188 SF · built 1970 · assessed $268.07/SF
- 30823 14th Ave S, Federal Way · 0.2 mi · 2,695 SF · built 1961 · assessed $224.97/SF
- 1748 S 312th St, Federal Way · 0.2 mi · 1,954 SF · built 1943 · assessed $274.97/SF
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Sale history and market context
MakeMe Estimate: $460K (estimated market value), with a likely range of $409K to $525K (half of recent verified sales in this segment landed inside that range). Based on 8 verified arm's-length comparable sales (through 2026-05-29). Not an appraisal. How this estimate works.
lower confidence: 1 comparable sale within 3 miles; nearest 1.3 mi. This property type carries wider measured error; treat the estimate as a starting point. Comparable-sale caveat: the estimate is 49% below the $252.99/SF median of the shown comparable sales.
Comparable sales used as evidence
- 33308 13th Pl S, Federal Way: $1,550,000 (2025-04), 6,317 SF, $245.37/SF, 1.3 mi away
- 329 E Main St, Auburn: $375,000 (2024-10), 1,439 SF, $260.60/SF, 4.4 mi away
- 2326 Auburn Way N, Auburn: $2,300,000 (2024-08), 5,896 SF, $390.09/SF, 4.4 mi away
- 813 Harvey Rd NE, Auburn: $1,530,000 (2024-12), 6,581 SF, $232.49/SF, 4.7 mi away
Recorded arm's-length sales of similar buildings nearby; nearer and more recent sales rank first. Buyer and seller names are withheld. Get this data via API.
Market context: Office in Federal Way
median verified sale $245.41/SF over the trailing 24 months; 2 sales in the last 12 months and 5 in 24 (newest verified sale 2026-03).
- 2022: $234.46/SF median (6 sales)
- 2023: $210.86/SF median (4 sales)
- 2024: $369/SF median (6 sales)
Computed from 215 verified arm's-length sales in King County public records (5 in the trailing 24 months). Free public records. Not an appraisal.