Insulating and air sealing attic
Alteration or repair at 75 Williams Av, Boston
Boston Inspectional Services Department permit SF1786070: issued Oct 23, 2025 for alteration or repair work at 75 Williams Av. insulating and air sealing attic, adding cellulose to bring R value to R49. insulating basement rim joists with 2" polyiso board with foil face. insulating attic open wall with fiberglass and 2" polyiso board with foil face.
- Permit number
- SF1786070
- Issued
- Type of work
- Alteration or repair
- Status
- Issued
- Reported cost
- $5,268
- ZIP code
- 02136
- City's category
- Insulation, Short Form Bldg Permit
- City's status
- Open
- Source
- Boston Inspectional Services Department permit data (this record)
Type of work and status are our own standard labels, so permits compare across cities. The city's wording is in the "City's category" and "City's status" rows. We show costs under $100 as not listed, because filers often enter $0 or $1 when the city doesn't require a cost.
All permits at 75 Williams Av, and what's permitted nearby
Boston Inspectional Services Department updated its data Oct 4, 2026. We checked it Oct 5, 19:56 UTC. See the city's official records.
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