# Alteration or repair permit ALT1183839 at 341 Commonwealth Av, Boston

Boston Inspectional Services Department permit ALT1183839: issued Nov 12, 2021 for alteration or repair work at 341 Commonwealth Av. Reduce existing occupancy from (6) units to (5) units. Combine two units into a single unit (reviewer note: project has another open ALT performing the six unit renovation). Add by-right roof deck as allowed per zoning, access via hatch. --> applicant will change access from hatch to penthouse to avoid building code violation art. 1011.12.2 Historic Commission shall review and approve application with a penthouse access.eplan.

- Permit number: ALT1183839
- Issued: Nov 12, 2021
- Type of work: Alteration or repair (city: Change Occupancy, Long Form/Alteration Permit)
- Status: Finished (city: Closed)
- Reported cost: Not listed
- ZIP code: 02115
- All permits at this address: https://nearbypermits.com/boston/address/341-commonwealth-av/

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Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-09 04:53 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 341 Commonwealth Av: https://nearbypermits.com/boston/address/341-commonwealth-av/