MakeMe Estimate: $807K (estimated market value), with a likely range of $712K to $932K (half of recent verified sales in this segment landed inside that range). Based on 8 verified arm's-length comparable sales (through 2026-06-01). Not an appraisal. How this estimate works.
lower confidence: 4 comparable sales within 3 miles; nearest 0.1 mi. This property type carries wider measured error; treat the estimate as a starting point. Last arm's-length sale: $640,000 in 2021. The market has moved since; the estimate reflects current county values and ratios, not that price. Comparable-sale caveat: the estimate is 30% above the $285.58/SF median of the shown comparable sales.
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 Burien
median verified sale $302.42/SF over the trailing 24 months; 4 sales in the last 12 months and 6 in 24 (newest verified sale 2026-04).
Computed from 144 verified arm's-length sales in King County public records (6 in the trailing 24 months). Free public records. Not an appraisal.
Last sold: 2021-04-21 for $640,000 (recorded arm's-length sale).
Current ownership dates to 2021 (about 5 years) per recorded transfers.
2021-04-21: $640,000 from Private party to Sea Real Holdings LLC, rec. 20210422002795
2019-03-13: $367,500 from Private party to Private party, rec. 20190319000158
2004-05-24: $150,000 from Private party to Private party, rec. 20040528004044
1998-02-27: $147,000 from Private party to Private party (non-market transfer), rec. 199802273415
1997-01-02: transfer from Private party to Private party (non-market transfer), rec. 199701151093
Source: King County recorded sales extract; buyer and seller shown only when a company or organization. Individual names are withheld.
Value over time
Dark line: county assessed value per King County tax rolls. Blue line: our estimate; dashed years are a modeled backcast built from recorded arm's-length sales in the building's segment, not estimates published at the time, and years without enough sales stay unmodeled. The shaded range is the model's measured error band; about half of verified sales in the segment land inside it. Diamonds: recorded arm's-length sales. Not an appraisal. How this estimate works.
Land, site, and value history
Assessed value moved from $161,500 (2011) to $645,200 (2026), up 300% over 15 years, per county tax rolls. The 2026 roll splits $645,200 into $188,100 land and $457,100 improvements.
Zoning: MU-2 (per King County)
Lot: 9,179 sq ft
Water: Water District (per King County)
Sewer: Public (per King County)
Access: Public
Street surface: Paved
Floor and use mix: Office Building 2,180 SF (county building sections)