# Addition permit ALT830077 at 349 Commonwealth Av, Boston

Boston Inspectional Services Department permit ALT830077: issued Oct 29, 2018 for addition work at 349 Commonwealth Av. Project includes a penthouse addition onto an existing four story building, reducing the size of an existing roof deck and replacing the existing wood railing with metal.

- Permit number: ALT830077
- Issued: Oct 29, 2018
- Type of work: Addition (city: Addition, Long Form/Alteration Permit)
- Status: Issued (city: Open)
- Reported cost: $458,283
- ZIP code: 02115
- All permits at this address: https://nearbypermits.com/boston/address/349-commonwealth-av/

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Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-06 20:04 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 349 Commonwealth Av: https://nearbypermits.com/boston/address/349-commonwealth-av/