31130 28th Ave S, Federal Way, WA 98003

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

Imagery suggests: building under construction. AI estimate from public imagery.

One of 78 reachable small-bay industrial buildings in Federal Way. Larger than 86% of small-bay industrial buildings in Federal Way (median 11,294 SF), derived from assessor records.

Own this building?

Claim privately

Claiming is for you. Your mailing address is never shown; no offer reaches you unless you opt in.

Claimed owners can confirm facts, watch the estimate, and decide whether to reply.

Claim or manage this building
Building size
66,125 SF, King County Assessor
Lot size
564,109 SF, King County Assessor
Year built
2025, King County Assessor
Stories
1, King County Assessor
Buildings on parcel
10, King County Assessor
Predominant use
Building B, King County Assessor
Assessed value
$14,619,900, per the King County Assessor (not a market appraisal)
Assessed value per building SF
$221.09/SF, derived from assessor records
Lot coverage
12%, derived from assessor records
Vintage
2020s vintage
Zoning
RS7.2, King County
County use code
Service Building
Construction (observed)
steel glass, AI estimate from public imagery
Parking (observed)
none visible, AI estimate from public imagery

Nearby comparable buildings

Same building type, by distance. Assessor facts only; not an opinion of value.

Want to talk to the owner? makeme1031 delivers a private, principal-to-principal letter to the owner of record. We never publish the owner's identity or address.

Sale history and market context

MakeMe Estimate: $19,006,113 (estimated market value), with a likely range of $14,690,275 to $19,196,174 (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

$5.01M$10M$15M$20M202420252026County 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 $820,700 (2024) to $14,619,900 (2026), up 1681% over 2 years, per county tax rolls. The 2026 roll splits $14,619,900 into $3,243,600 land and $11,376,300 improvements.

Taxes

Permit history

Source: King County permit records (newest first).