541 1st Ave S, Seattle, WA 98104
Office · Seattle · Seattle-Bellevue metro, WA
Imagery suggests: modern office building, 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 AI estimate from public imagery; may be outdated.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 957 reachable office buildings in Seattle. Larger than 94% of office buildings in Seattle (median 20,410 SF), derived from assessor records.
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Claim or manage this building- Building size
- 443,509 SF, King County Assessor
- Lot size
- 47,868 SF, King County Assessor
- Year built
- 2009, King County Assessor
- Stories
- 7, King County Assessor
- Predominant use
- 505 First Avenue S, King County Assessor
- Assessed value
- $64,506,000, per the King County Assessor (not a market appraisal)
- Assessed value per building SF
- $145.44/SF, derived from assessor records
- Lot coverage
- 927%, derived from assessor records
- Vintage
- 2000s vintage
- Zoning
- PSM-85-120, King County
- County use code
- Office Building
- Construction (observed)
- masonry, AI estimate from public imagery
- Parking (observed)
- surface lot, 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.
- 83 S King St, Seattle · 0 mi · 204,504 SF · built 1904 · assessed $171.43/SF
- 500 1st Ave S, Seattle · 0.1 mi · 87,885 SF · built 1910 · assessed $168.67/SF
- 76 S King St, Seattle · 0.1 mi · 224,714 SF · built 2017 · assessed $186.47/SF
- 411 1st Ave S, Seattle · 0.1 mi · 154,159 SF · built 1913 · assessed $197.59/SF
- 542 1st Ave S, Seattle · 0.1 mi · 66,842 SF · built 1904 · assessed $236.54/SF
- 100 S King St, Seattle · 0.1 mi · 73,260 SF · built 1907 · assessed $566.93/SF
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