Construct tenant improvements for multi-family (Mason & Main Apartments) at entry lobbies on the northeast
Alteration or repair at 209 12th Ave S, Seattle
Seattle Department of Construction and Inspections permit 7138618-CN: issued Aug 11, 2026 for alteration or repair work at 209 12th Ave S. Construct tenant improvements for multi-family (Mason & Main Apartments) at entry lobbies on the northeast corner of 1st floor and the southwest area of 2nd Floor to existing mixed-use building per plan.
- Permit number
- 7138618-CN
- Issued
- Type of work
- Alteration or repair
- Status
- Issued
- Reported cost
- $10,000
- ZIP code
- 98104
- City's category
- Addition/Alteration, Multifamily
- City's status
- Issued
- Source
- Seattle Department of Construction and Inspections permit data (this record)
Type of work and status are our own standard labels, so permits compare across cities. The city's wording is in the "City's category" and "City's status" rows. We show costs under $100 as not listed, because filers often enter $0 or $1 when the city doesn't require a cost.
All permits at 209 12th Ave S, and what's permitted nearby
Seattle Department of Construction and Inspections updated its data Oct 18, 2026. We checked it Oct 18, 02:26 UTC. See the city's official records (City of Seattle).
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