363 Mercer St, Seattle, WA 98109
Commercial · Seattle · Seattle-Bellevue metro, WA
Imagery suggests: mid-rise office, appears multi-tenant. AI estimate from public imagery. In recent public imagery (2026-06), the building appears well maintained. AI estimate from public imagery; may be outdated.
One of 1,256 reachable commercial buildings in Seattle. Larger than 87% of commercial buildings in Seattle (median 13,352 SF), derived from assessor records.
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Claim or manage this building- Building size
- 103,000 SF, King County Assessor
- Lot size
- 63,144 SF, King County Assessor
- Year built
- 2019, King County Assessor
- Stories
- 4, King County Assessor
- Predominant use
- Seattle Opera At The Center, King County Assessor
- Assessed value
- $0, per the King County Assessor (not a market appraisal)
- Lot coverage
- 163%, derived from assessor records
- Vintage
- 2010s vintage
- Zoning
- SM-UP 95 (M), King County
- County use code
- Auditorium//Assembly Bldg
- Construction (observed)
- steel glass, AI estimate from public imagery
- Parking (observed)
- none visible, AI estimate from public imagery
- Frontage (observed)
- mid block, AI estimate from public imagery
Nearby comparable buildings
Same building type, by distance. Assessor facts only; not an opinion of value.
- 324 Republican St, Seattle · 0.1 mi · 437,104 SF · built 1928
- 700 5th Ave N, Seattle · 0.2 mi · 71,150 SF · built 1996 · assessed $310.57/SF
- 305 Harrison St, Seattle · 0.2 mi · 426,785 SF · built 1938
- 325 5th Ave N, Seattle · 0.2 mi · 141,718 SF · built 1999 · assessed $783.61/SF
- 165 Mercer St, Seattle · 0.2 mi · 34,934 SF · built 1966
- 805 4th Ave N, Seattle · 0.2 mi · 145,085 SF · built 2006 · assessed $257.64/SF
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