# Alteration or repair permit ALT1775049 at 43 Chestnut St, Boston

Boston Inspectional Services Department permit ALT1775049: issued Nov 17, 2025 for alteration or repair work at 43 Chestnut St. Change of occupancy from a 3-family residence to a single-family residence. Full interior remodel including new mechanical, electrical, and plumbing (MEP) systems; installation of new insulation throughout; complete kitchen and bathroom renovations; replacement of all windows; and associated interior finishes.

- Permit number: ALT1775049
- Issued: Nov 17, 2025
- Type of work: Alteration or repair (city: Change Occupancy, Long Form/Alteration Permit)
- Status: Issued (city: Open)
- Reported cost: $700,000
- ZIP code: 02129
- All permits at this address: https://nearbypermits.com/boston/address/43-chestnut-st/

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Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-06 17:56 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 43 Chestnut St: https://nearbypermits.com/boston/address/43-chestnut-st/