Allow accessory dwelling unit per land use code
Addition at 814 20th Ave S, Seattle
Seattle Department of Construction and Inspections permit 6902178-CN: issued Sep 11, 2025 for addition work at 814 20th Ave S. Allow accessory dwelling unit per land use code. Construct a second story addition and substantial alterations to existing single family residence per plan.
- Permit number
- 6902178-CN
- Issued
- Type of work
- Addition
- Status
- Issued
- Reported cost
- $497,057
- ZIP code
- 98144
- City's category
- Addition/Alteration, Single Family/Duplex
- 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 814 20th Ave S, and what's permitted nearby
Seattle Department of Construction and Inspections updated its data Oct 7, 2026. We checked it Oct 7, 03:38 UTC. See the city's official records (City of Seattle).
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