# Alteration or repair permit ALT572138 at 158 Walnut St, Boston

Boston Inspectional Services Department permit ALT572138: issued Apr 20, 2016 for alteration or repair work at 158 Walnut St. 6 helical piles outside of foundation. 2 7/8" double helix 4 @ 20 kip and 2 @ 10 kip working load. Monitoring P.E. Rene Mugnier.

- Permit number: ALT572138
- Issued: Apr 20, 2016
- Type of work: Alteration or repair (city: Other, Long Form/Alteration Permit)
- Status: Finished (city: Closed)
- Reported cost: $13,800
- ZIP code: 02122
- All permits at this address: https://nearbypermits.com/boston/address/158-walnut-st/

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Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-07 05:37 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 158 Walnut St: https://nearbypermits.com/boston/address/158-walnut-st/