# Alteration or repair permit SF1660633 at 21 Davison St, Boston

Boston Inspectional Services Department permit SF1660633: issued Oct 10, 2024 for alteration or repair work at 21 Davison St. Air Sealing Blow-in dense pack cellulose inside walls.

- Permit number: SF1660633
- Issued: Oct 10, 2024
- Type of work: Alteration or repair (city: Insulation, Short Form Bldg Permit)
- Status: Issued (city: Open)
- Reported cost: $12,608
- ZIP code: 02136
- All permits at this address: https://nearbypermits.com/boston/address/21-davison-st/

---
Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-05 18:28 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 21 Davison St: https://nearbypermits.com/boston/address/21-davison-st/
