# Addition permit ALT1734282 at 20 Cotton St, Boston

Boston Inspectional Services Department permit ALT1734282: issued Jul 7, 2026 for addition work at 20 Cotton St. 342 Sf single story addition off the back of the existing home. New footings, framing, windows, doors, electrical & HVAC is proposed. As well as a partial renovation to the existing half bath to a full bath next to the addition.

- Permit number: ALT1734282
- Issued: Jul 7, 2026
- Type of work: Addition (city: Addition, Long Form/Alteration Permit)
- Status: Issued (city: Open)
- Reported cost: $152,000
- ZIP code: 02131
- All permits at this address: https://nearbypermits.com/boston/address/20-cotton-st/

---
Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-04 13:50 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/