# Addition permit ALT1774356 at 231 Princeton St, Boston

Boston Inspectional Services Department permit ALT1774356: issued Sep 17, 2026 for addition work at 231 Princeton St. Build a new (in unit) gym per plans, existing front print of current existing deck.;APPROVED WITH PROVISO: Inspector to verify in field the fire rating of addition and egress stairway materials (1h min.) To be in compliance with IRC-R302eplan -- BOA decision valid until 07/2028.

- Permit number: ALT1774356
- Issued: Sep 17, 2026
- Type of work: Addition (city: Addition, Long Form/Alteration Permit)
- Status: Issued (city: Open)
- Reported cost: $68,500
- ZIP code: 02128
- All permits at this address: https://nearbypermits.com/boston/address/231-princeton-st/

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Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-04 10:02 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/