# Alteration or repair permit ALT992947 at 451 D St, Boston

Boston Inspectional Services Department permit ALT992947: issued Nov 1, 2019 for alteration or repair work at 451 D St. Silicon Tx is currently located on the 2nd floor (SE) and is expanding into adjacent suite 250. New open office concept with workstations, conference room, kitchen, and lab expansion.

- Permit number: ALT992947
- Issued: Nov 1, 2019
- Type of work: Alteration or repair (city: Renovations - Interior NSC, Long Form/Alteration Permit)
- Status: Issued (city: Open)
- Reported cost: $2,437,000
- ZIP code: 02210
- All permits at this address: https://nearbypermits.com/boston/address/451-d-st/

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Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-05 19:07 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 451 D St: https://nearbypermits.com/boston/address/451-d-st/