MakeMe Estimate: $2.86M (estimated market value), with a likely range of $2.52M to $3.3M (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: 5 comparable sales within 3 miles; nearest 1.2 mi. This property type carries wider measured error; treat the estimate as a starting point.
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 Shoreline
median verified sale $331.16/SF over the trailing 24 months; 2 sales in the last 12 months and 5 in 24 (newest verified sale 2025-06).
Computed from 80 verified arm's-length sales in King County public records (5 in the trailing 24 months). Free public records. Not an appraisal.
Last sold: 2011-08-02 for $1,360,000 (recorded arm's-length sale).
Current ownership dates to 2011 (about 15 years) per recorded transfers.
2011-08-02: $1,360,000 from SB 24 14803 15th Ave LLC to Center For Human Services, rec. 20110805000320
2010: transferred to SB 24 14803 15th Ave LLC, no consideration (3 recorded transfers, 2006 to 2010)
2005-07-27: $558,000 from Spirk Family LLC to Private party (part of a 2-parcel sale; price is the whole deal), rec. 20050802001125
1999: transferred to Spirk Family LLC, no consideration (2 recorded transfers, 1998 to 1999)
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 $1,449,800 (2011) to $2,148,600 (2026), up 48% over 15 years, per county tax rolls. The 2026 roll splits $2,148,600 into $807,300 land and $1,341,300 improvements.
Zoning: CB (per King County)
Lot: 11,533 sq ft
Water: Water District (per King County)
Sewer: Public (per King County)
Access: Public
Street surface: Paved
Floor and use mix: Office Building 7,845 SF (county building sections)