# Addition permit 6570194-CN at 2400 11th Ave E, Seattle

Seattle Department of Construction and Inspections permit 6570194-CN: issued Jun 20, 2017 for addition work at 2400 11th Ave E. Construct roof deck addition and alterations to existing public school (Seattle Preparatory School Adelphia Memorial Hall) occupy per plans.

- Permit number: 6570194-CN
- Issued: Jun 20, 2017
- Type of work: Addition (city: Addition/Alteration, Commercial)
- Status: Finished (city: Completed)
- Reported cost: $509,000
- ZIP code: 98102
- All permits at this address: https://nearbypermits.com/seattle/address/2400-11th-ave-e/

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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 2026-10-08 12:42 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 2400 11th Ave E: https://nearbypermits.com/seattle/address/2400-11th-ave-e/