1340 4th Ave, Seattle, WA 98101

Office · Seattle · Seattle-Bellevue metro, WA

One of 1,701 reachable office buildings in Seattle. Larger than 100% of office buildings in Seattle (median 8,568 SF), derived from assessor records.

Usable building area
3,130,475 SF, King County Assessor
County gross area
4,101,949 SF, King County Assessor
Excluded area
971,474 SF outside primary usable area
Lot size
271,314 SF, King County Assessor
Year built
2019, King County Assessor
Stories
58, King County Assessor
Buildings on parcel
8, King County Assessor
Predominant use
Office Building, King County Assessor
Assessed value
$121,295,000, per the King County Assessor (not a market appraisal)
Assessed value per usable SF
$38.75/SF, derived from assessor records
Usable area / lot
11.54, derived from assessor records
Vintage
2010s vintage
Zoning
DOC1 U/450/U, King County
County use code
Office Building

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: $128M (estimated market value), with a likely range of $109M to $149M (half of recent verified sales in this segment landed inside that range). Based on 0 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 0 mi. This property type carries wider measured error; treat the estimate as a starting point.

Comparable sales

No nearby verified sales clear our evidence bar for this building right now. We show only real arm's-length sales inside the market's $/SF integrity band, never junk transfers.

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 1.05x county assessed value, the 58th 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