200 W Mercer St, Seattle, WA 98119

Office · Seattle · Seattle-Bellevue metro, WA

One of 1,701 reachable office buildings in Seattle. Larger than 91% of office buildings in Seattle (median 8,568 SF), derived from assessor records.

Usable building area
155,766 SF, King County Assessor
County gross area
253,091 SF, King County Assessor
Excluded area
97,325 SF outside primary usable area
Lot size
47,945 SF, King County Assessor
Year built
1982, King County Assessor
Stories
5, King County Assessor
Predominant use
Condominium(office), King County Assessor
Assessed value
$25,970,000, per the King County Assessor (not a market appraisal)
Assessed value per usable SF
$166.72/SF, derived from assessor records
Usable area / lot
3.25, derived from assessor records
Vintage
1980s vintage
Zoning
SM-UP 65, King County
County use code
Condominium(Office)

Nearby comparable buildings

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

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Sale history and market context

MakeMe Estimate: $29.1M (estimated market value), with a likely range of $24.9M to $34M (half of recent verified sales in this segment landed inside that range). Based on 7 verified arm's-length comparable sales (through 2026-06-01). Not an appraisal. How this estimate works.

lower confidence: 6 comparable sales within 3 miles; nearest 0.9 mi. This property type carries wider measured error; treat the estimate as a starting point. Comparable-sale caveat: the estimate is 28% below the $258.22/SF median of the shown comparable sales.

Comparable sales used as evidence

Recorded arm's-length sales of similar buildings nearby; nearer and more recent sales rank first. The strongest 5 of 6 nearby verified sales are shown. Buyer and seller names are withheld. Get this data via API.

Market context: Office in Seattle

median verified sale $364.58/SF over the trailing 24 months; 28 sales in the last 12 months and 52 in 24 (newest verified sale 2026-05); the middle 80% of recent sales traded at 0.63x to 1.44x their county assessed value, median 1.00x (52 sales with usable county values).

  • 2022: $472.22/SF median (35 sales)
  • 2023: $415.77/SF median (20 sales)
  • 2024: $326.92/SF median (24 sales)
  • 2025: $371.06/SF median (27 sales)
  • 2026 YTD: $390.03/SF median (11 sales)

This estimate sits at 1.12x county assessed value, the 65th percentile of those recent sale premiums.

Computed from 1,574 verified arm's-length sales in King County public records (52 in the trailing 24 months). Free public records. Not an appraisal.

Land, site, and value history