1811 20th Ave, Seattle, WA 98122
Commercial · Seattle · Seattle-Bellevue metro, WA
Imagery suggests: low-rise apartments, 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 AI estimate from public imagery; may be outdated.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 52% of commercial buildings in Seattle (median 13,352 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
- 14,710 SF, King County Assessor
- Lot size
- 4,800 SF, King County Assessor
- Year built
- 2016, King County Assessor
- Stories
- 5, King County Assessor
- Predominant use
- Congregate Housing + Offices + Live-Work, King County Assessor
- Units
- 41, King County Assessor
- Assessed value
- $2,578,100, per the King County Assessor (not a market appraisal)
- Assessed value per building SF
- $175.26/SF, derived from assessor records
- Lot coverage
- 306%, derived from assessor records
- Vintage
- 2010s vintage
- Zoning
- NC2-75 (M1), King County
- Construction (observed)
- wood frame, 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.
- 1808 18th Ave, Seattle · 0.1 mi · 25,200 SF · built 1911 · assessed $324.19/SF
- 1712 18th Ave, Seattle · 0.1 mi · 13,207 SF · built 1902 · assessed $234.85/SF
- 2200 E Madison St, Seattle · 0.1 mi · 105,335 SF · built 2013 · assessed $327.88/SF
- 1720 E Olive St, Seattle · 0.2 mi · 14,394 SF · built 2013 · assessed $531.47/SF
- 1802 17th Ave, Seattle · 0.2 mi · 63,998 SF · built 1988 · assessed $277.96/SF
- 1700 23rd Ave, Seattle · 0.2 mi · 26,321 SF · built 1991 · assessed $432.77/SF
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.