MakeMe Estimate: $31.2M (estimated market value), with a likely range of $27.6M to $40.1M (half of recent verified sales in this segment landed inside that range). Based on 5 verified arm's-length comparable sales (through 2026-06-01). Not an appraisal. How this estimate works.
lower confidence: 0 comparable sales within 3 miles; nearest 9.1 mi. This property type carries wider measured error; treat the estimate as a starting point. Last arm's-length sale: $32,321,774 in 2021. The market has moved since; the estimate reflects current county values and ratios, not that price. Comparable-sale caveat: the estimate is well above (more than 3x apart from) the $176.81/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 Renton
median verified sale $283.97/SF over the trailing 24 months; 4 sales in the last 12 months and 9 in 24 (newest verified sale 2025-12); the middle 80% of recent sales traded at 0.96x to 1.35x their county assessed value, median 1.01x (9 sales with usable county values).
2021: $294.01/SF median (5 sales)
2022: $290.17/SF median (6 sales)
2023: $272.49/SF median (7 sales)
2024: $288.89/SF median (5 sales)
2025: $274.56/SF median (4 sales)
This estimate sits at 0.95x county assessed value, the 0th percentile of those recent sale premiums.
Computed from 260 verified arm's-length sales in King County public records (9 in the trailing 24 months). Free public records. Not an appraisal.
Last sold: 2021-07-07 for $32,321,774 (recorded arm's-length sale).
Current ownership dates to 2021 (about 5 years) per recorded transfers.
2021-07-07: $32,321,774 from Oakesdale I LLC to Cpi/Ahp Renton Mob Owner LLC, rec. 20210712001723
2006: transferred to Oakesdale I LLC, no consideration (2 recorded transfers, 2004 to 2006)
2002-07-15: $2,250,000 from Zelman Renton LLC to Idc Oaksdale LLC (part of a 4-parcel sale; price is the whole deal), rec. 20020715001245
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 $11,614,700 (2011) to $32,986,800 (2026), up 184% over 15 years, per county tax rolls. The 2026 roll splits $32,986,800 into $3,206,900 land and $29,779,900 improvements.
Zoning: CA (per King County)
Lot: 135,582 sq ft
Water: Water District (per King County)
Sewer: Public (per King County)
Access: Public
Street surface: Paved
Floor and use mix: Medical Office 60,916 SF (county building sections)