# Alteration or repair permit ALT1819585 at 21-53 Summer St, Boston

Boston Inspectional Services Department permit ALT1819585: issued May 8, 2026 for alteration or repair work at 21-53 Summer St. Installation of two new chillers on the seventh-floor roof. Additional support steel, mechanical piping, and wiring of the units will be taking place. There will be no work related to fire alarm, smoke detectors, and no new wall construction.eplan.

- Permit number: ALT1819585
- Issued: May 8, 2026
- Type of work: Alteration or repair (city: Other, Long Form/Alteration Permit)
- Status: Issued (city: Open)
- Reported cost: $3,554,969
- ZIP code: 02110
- All permits at this address: https://nearbypermits.com/boston/address/21--53-summer-st/

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Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-05 18:25 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 21-53 Summer St: https://nearbypermits.com/boston/address/21--53-summer-st/