# Addition permit 7029451-CN at 1644 B 20th Ave, Seattle

Seattle Department of Construction and Inspections permit 7029451-CN: issued Nov 25, 2024 for addition work at 1644 B 20th Ave. Construct additions and alterations to townhouse per plan.

- Permit number: 7029451-CN
- Issued: Nov 25, 2024
- Type of work: Addition (city: Addition/Alteration, Single Family/Duplex)
- Status: Finished (city: Completed)
- Reported cost: $20,000
- ZIP code: 98122
- All permits at this address: https://nearbypermits.com/seattle/address/1644-b-20th-ave/

---
Source: Seattle Department of Construction and Inspections permit data (https://cos-data.seattle.gov/d/76t5-zqzr), City of Seattle. Checked 2026-10-09 08:58 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 1644 B 20th Ave: https://nearbypermits.com/seattle/address/1644-b-20th-ave/