# Addition permit 7001941-CN at 3635 23rd Ave W, Seattle

Seattle Department of Construction and Inspections permit 7001941-CN: issued Apr 3, 2026 for addition work at 3635 23rd Ave W. Construct addition and alterations for a two-family dwelling per plan. (Allow new detached and attached accessory dwelling units to existing single family use per land use code. Construct new one-family dwelling and additions and alterations to existing single-family dwelling per plan. Review and process for 2 records under 7001941-CN).

- Permit number: 7001941-CN
- Issued: Apr 3, 2026
- Type of work: Addition (city: Addition/Alteration, Single Family/Duplex)
- Status: Issued (city: Issued)
- Reported cost: $427,789
- ZIP code: 98199
- All permits at this address: https://nearbypermits.com/seattle/address/3635-23rd-ave-w/

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Source: Seattle Department of Construction and Inspections permit data (https://cos-data.seattle.gov/d/76t5-zqzr), City of Seattle. Checked 2026-10-13 04:53 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 3635 23rd Ave W: https://nearbypermits.com/seattle/address/3635-23rd-ave-w/