8815 SE 40th St, Mercer Island, WA 98040
Commercial · Mercer Island · Seattle-Bellevue metro, WA
Imagery suggests: multi-story retail/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 AI estimate from public imagery; may be outdated.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 23 reachable commercial buildings in Mercer Island. Larger than 30% of commercial buildings in Mercer Island (median 41,832 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
- 16,908 SF, King County Assessor
- Lot size
- 71,610 SF, King County Assessor
- Year built
- 1973, King County Assessor
- Stories
- 1, King County Assessor
- Predominant use
- King County Metro Pool, King County Assessor
- Assessed value
- $0, per the King County Assessor (not a market appraisal)
- Lot coverage
- 24%, derived from assessor records
- Vintage
- 1970s vintage
- Zoning
- PI, King County
- County use code
- Sport Facility
- 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.
- 4030 86th Ave SE, Mercer Island · 0.1 mi · 77,277 SF · built 2017
- 9100 SE 42nd St, Mercer Island · 0.2 mi · 206,500 SF · built 1955
- 4120 86th Ave SE, Mercer Island · 0.2 mi · 44,968 SF · built 2010
- 9555 SE 36th St, Mercer Island · 0.5 mi · 15,730 SF · built 1969 · assessed $575/SF
- 4141 81st Ave SE, Mercer Island · 0.5 mi · 35,785 SF · built 1964
- 4400 88th Ave SE, Mercer Island · 0.5 mi · 14,650 SF · built 1990
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.