Dense pack cellulose in exterior walls
Alteration or repair at 45 Cotton St, Boston
Boston Inspectional Services Department permit SF1818936: issued Feb 6, 2026 for alteration or repair work at 45 Cotton St. Dense pack cellulose in exterior walls. R19 fgb and air sealing in rim joist. Mass Save.
- Permit number
- SF1818936
- Issued
- Type of work
- Alteration or repair
- Status
- Finished
- Reported cost
- $6,967
- ZIP code
- 02131
- City's category
- Insulation, Short Form Bldg Permit
- City's status
- Closed
- 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 45 Cotton St, and what's permitted nearby
Boston Inspectional Services Department updated its data Oct 8, 2026. We checked it Oct 9, 11:47 UTC. See the city's official records.
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