311 1st Ave S, Seattle, WA 98104
Office · Seattle · Seattle-Bellevue metro, WA
Imagery suggests: urban mixed-use, 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 AI estimate from public imagery; may be outdated.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 45% of office buildings in Seattle (median 20,410 SF), derived from assessor records.
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Claim or manage this building- Building size
- 15,130 SF, King County Assessor
- Lot size
- 3,330 SF, King County Assessor
- Year built
- 1900, King County Assessor
- Stories
- 3, King County Assessor
- Predominant use
- Office Building W/Restaurant On 1st, King County Assessor
- Assessed value
- $2,559,500, per the King County Assessor (not a market appraisal)
- Assessed value per building SF
- $169.17/SF, derived from assessor records
- Lot coverage
- 454%, derived from assessor records
- Vintage
- pre-war vintage
- Zoning
- PSM-100, King County
- County use code
- Office Building
- Construction (observed)
- masonry, AI estimate from public imagery
- Parking (observed)
- street only, 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.
- 222 Alaskan Way S, Seattle · 0 mi · 9,525 SF · built 1907 · assessed $182.68/SF
- 310 1st Ave S, Seattle · 0 mi · 69,817 SF · built 1900 · assessed $116.38/SF
- 74 S Jackson St, Seattle · 0 mi · 158,550 SF · built 2023 · assessed $214.33/SF
- 219 1st Ave S, Seattle · 0 mi · 33,300 SF · built 1900 · assessed $132.94/SF
- 122 S Jackson St, Seattle · 0 mi · 28,142 SF · built 1900 · assessed $123.37/SF
- 313 Occidental Ave S, Seattle · 0 mi · 28,760 SF · built 1900 · assessed $121.86/SF
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