# Alteration or repair permit SF1535523 at 669 Washington St, Boston

Boston Inspectional Services Department permit SF1535523: issued Oct 17, 2023 for alteration or repair work at 669 Washington St. Mass Save Insulation & Air Sealing. No Structural Changes.

- Permit number: SF1535523
- Issued: Oct 17, 2023
- Type of work: Alteration or repair (city: Insulation, Short Form Bldg Permit)
- Status: Issued (city: Open)
- Reported cost: $7,701
- ZIP code: 02135
- All permits at this address: https://nearbypermits.com/boston/address/669-washington-st/

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Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-09 04:28 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 669 Washington St: https://nearbypermits.com/boston/address/669-washington-st/