307 3rd Ave S, Seattle, WA 98104
Office · Seattle · Seattle-Bellevue metro, WA
Imagery suggests: urban mixed-use 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 AI estimate from public imagery; may be outdated.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 64% of office buildings in Seattle (median 20,410 SF), derived from assessor records.
Own this building?
Claim privately
Claiming is for you. Your mailing address is never shown; no offer reaches you unless you opt in.
Claimed owners can confirm facts, watch the estimate, and decide whether to reply.
Claim or manage this building- Building size
- 41,920 SF, King County Assessor
- Lot size
- 7,196 SF, King County Assessor
- Year built
- 1906, King County Assessor
- Stories
- 5, King County Assessor
- Predominant use
- Office Bldg., King County Assessor
- Assessed value
- $4,900,000, per the King County Assessor (not a market appraisal)
- Assessed value per building SF
- $116.89/SF, derived from assessor records
- Lot coverage
- 583%, derived from assessor records
- Vintage
- pre-war vintage
- Zoning
- PSM 100/100-120, King County
- County use code
- Office Building
- Construction (observed)
- masonry, 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.
- 312 2nd Ave S, Seattle · 0 mi · 25,954 SF · built 1900 · assessed $283.55/SF
- 240 2nd Ave S, Seattle · 0 mi · 54,805 SF · built 1900 · assessed $117.70/SF
- 220 3rd Ave S, Seattle · 0.1 mi · 33,640 SF · built 1905 · assessed $188.96/SF
- 315 2nd Ave S, Seattle · 0.1 mi · 25,920 SF · built 1900 · assessed $177.01/SF
- 201 S Jackson St, Seattle · 0.1 mi · 446,261 SF · built 1998
- 206 3rd Ave S, Seattle · 0.1 mi · 18,300 SF · built 1904
Want to talk to the owner? makeme1031 delivers a private, principal-to-principal letter to the owner of record. We never publish the owner's identity or address.