# Alteration or repair permit ALT1307489 at 101 Mattapan St, Boston

Boston Inspectional Services Department permit ALT1307489: issued Mar 9, 2026 for alteration or repair work at 101 Mattapan St. Change occupancy from a single family to a single family with ADU in the basement.eplan.

- Permit number: ALT1307489
- Issued: Mar 9, 2026
- Type of work: Alteration or repair (city: Renovations - Interior NSC, Long Form/Alteration Permit)
- Status: Issued (city: Open)
- Reported cost: $20,000
- ZIP code: 02126
- All permits at this address: https://nearbypermits.com/boston/address/101-mattapan-st/

---
Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-06 17:21 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 101 Mattapan St: https://nearbypermits.com/boston/address/101-mattapan-st/