# Alteration or repair permit ALT1581741 at 45 Longfellow St, Boston

Boston Inspectional Services Department permit ALT1581741: issued Oct 17, 2024 for alteration or repair work at 45 Longfellow St. Adding an additional dwelling unit (ADU) in the basement and integrating the new unit into existing heating, hot water, plumbing, and electrical systems. ADU will be 1 bed, 1 bath, with a kitchen, living room, hard-wired smoke detectors, new windows + doors, and NEPA 13D tank + sprinkler system.*Application reassigned to FD on 10.17.24.

- Permit number: ALT1581741
- Issued: Oct 17, 2024
- Type of work: Alteration or repair (city: Renovations - Interior NSC, Long Form/Alteration Permit)
- Status: Finished (city: Closed)
- Reported cost: $73,000
- ZIP code: 02122
- All permits at this address: https://nearbypermits.com/boston/address/45-longfellow-st/

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Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-06 01:45 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 45 Longfellow St: https://nearbypermits.com/boston/address/45-longfellow-st/