# Fire systems permit EFA1142335 at 493 Walnut Av, Boston

Boston Inspectional Services Department permit EFA1142335: issued Dec 4, 2020 for fire systems work at 493 Walnut Av. install (1) smoke/co combo detector at foyer and (1) heat detectors in garage to tie into existing system in house.

- Permit number: EFA1142335
- Issued: Dec 4, 2020
- Type of work: Fire systems (city: Fire Alarm, Electrical Fire Alarms)
- Status: Issued (city: Open)
- Reported cost: $300
- ZIP code: 02130
- All permits at this address: https://nearbypermits.com/boston/address/493-walnut-av/

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Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-07 16:29 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 493 Walnut Av: https://nearbypermits.com/boston/address/493-walnut-av/