# Electrical permit E431548 at 420 E St, Boston

Boston Inspectional Services Department permit E431548: issued Dec 3, 2014 for electrical work at 420 E St. Install new 400 amp 3phase 4 wire Manual Generator Transfer switch in Electric room. Install new 400 amp 3 phase 4 wire feeder and subpanel needed to separate critical emergency generator circuits.

- Permit number: E431548
- Issued: Dec 3, 2014
- Type of work: Electrical (city: Electrical, Electrical Permit)
- Status: Issued (city: Open)
- Reported cost: $25,000
- ZIP code: 02210
- All permits at this address: https://nearbypermits.com/boston/address/420-e-st/

---
Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-05 10:54 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/