# Alteration or repair permit ALT1897892 at 658 Walk Hill St, Boston

Boston Inspectional Services Department permit ALT1897892: issued Oct 2, 2026 for alteration or repair work at 658 Walk Hill St. Convert unfinished basement to one additional dwelling unit and create a three-family dwelling. Install new fire alarm and sprinkler system and renovate basement space including new window wells for egress.

- Permit number: ALT1897892
- Issued: Oct 2, 2026
- Type of work: Alteration or repair (city: Change Occupancy, Long Form/Alteration Permit)
- Status: Issued (city: Open)
- Reported cost: $189,000
- ZIP code: 02126
- All permits at this address: https://nearbypermits.com/boston/address/658-walk-hill-st/

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Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-04 15:07 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/