# Addition permit ALT1294631 at 19 Haydn St, Boston

Boston Inspectional Services Department permit ALT1294631: issued Aug 7, 2023 for addition work at 19 Haydn St. Renovation and addition to Unit 2 in an existing two-family detached building, including a slightly revised second floor layout with a refinished bath and new front in-unit stairwell to the third floor, and a third floor mansard roof addition including a master suite and recessed balcony to the rear.

- Permit number: ALT1294631
- Issued: Aug 7, 2023
- Type of work: Addition (city: Addition, Long Form/Alteration Permit)
- Status: Finished (city: Closed)
- Reported cost: $200,000
- ZIP code: 02131
- All permits at this address: https://nearbypermits.com/boston/address/19-haydn-st/

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Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-10 11:55 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 19 Haydn St: https://nearbypermits.com/boston/address/19-haydn-st/