MakeMe Estimate: $546K (estimated market value), with a likely range of $442K to $632K (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.
moderate 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: $550,000 in 2022. The market has moved since; the estimate reflects current county values and ratios, not that price.
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: Retail in Vashon
median verified sale $421.05/SF over the trailing 24 months; 2 sales in the last 12 months and 6 in 24 (newest verified sale 2026-02).
Computed from 59 verified arm's-length sales in King County public records (6 in the trailing 24 months). Free public records. Not an appraisal.
Last sold: 2022-07-11 for $550,000 (recorded arm's-length sale).
Current ownership dates to 2022 (about 4 years) per recorded transfers.
2022-07-11: $550,000 from Helsby Family LLC to 17233 Vashon Hwy LLC, rec. 20220729000648
2019: transferred to Helsby Family LLC, no consideration (2 recorded transfers, 2000 to 2019)
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 $218,700 (2011) to $390,800 (2026), up 79% over 15 years, per county tax rolls. The 2026 roll splits $390,800 into $87,700 land and $303,100 improvements.
Zoning: CB (per King County)
Lot: 6,750 sq ft
Water: Water District (per King County)
Sewer: Public (per King County)
Access: Public
Floor and use mix: Retail Store 1,492 SF (county building sections)