# New building permit 7055540-CN at 310 B 20th Ave, Seattle

Seattle Department of Construction and Inspections permit 7055540-CN: issued Jul 7, 2025 for new building work at 310 B 20th Ave. Construct NE two-family dwelling 2 per plan. (Establish use as single-family residence with attached and detached accessory dwelling units per land use code. Construct 2 new one-family dwellings and 2 new two-family dwellings per plan. Review and processing for four records under 7035964-CN).

- Permit number: 7055540-CN
- Issued: Jul 7, 2025
- Type of work: New building (city: New, Multifamily)
- Status: Issued (city: Issued)
- Reported cost: $444,964
- ZIP code: 98122
- All permits at this address: https://nearbypermits.com/seattle/address/310-b-20th-ave/

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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 2026-10-10 18:35 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 310 B 20th Ave: https://nearbypermits.com/seattle/address/310-b-20th-ave/