Change use of existing single family residence to detached accessory dwelling unit
Alteration or repair at 3402 48th Ave SW, Seattle
Seattle Department of Construction and Inspections permit 7078688-CN: issued Aug 8, 2025 for alteration or repair work at 3402 48th Ave SW. Change use of existing single family residence to detached accessory dwelling unit per plan. (Change use of existing single-family residence to detached dwelling unit (DADU) and establish use as single-family residence with attached accessory dwelling unit (AADU) per the land use code. Construct new two-family dwelling and detached garage per plan. Review and process for two CN records under 7069297-CN).
- Permit number
- 7078688-CN
- Issued
- Type of work
- Alteration or repair
- Status
- Finished
- Reported cost
- Not listed
- ZIP code
- 98116
- City's category
- Change of Use Only - No Construction, Single Family/Duplex
- City's status
- Completed
- 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 3402 48th Ave SW, and what's permitted nearby
Seattle Department of Construction and Inspections updated its data Oct 11, 2026. We checked it Oct 12, 04:40 UTC. See the city's official records (City of Seattle).
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