342 Sf single story addition off the back of the existing home
Addition at 20 Cotton St, Boston
Boston Inspectional Services Department permit ALT1734282: issued Jul 7, 2026 for addition work at 20 Cotton St. 342 Sf single story addition off the back of the existing home. New footings, framing, windows, doors, electrical & HVAC is proposed. As well as a partial renovation to the existing half bath to a full bath next to the addition.
- Permit number
- ALT1734282
- Issued
- Type of work
- Addition
- Status
- Issued
- Reported cost
- $152,000
- ZIP code
- 02131
- City's category
- Addition, Long Form/Alteration 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 20 Cotton St, and what's permitted nearby
Boston Inspectional Services Department updated its data Oct 3, 2026. We checked it Oct 4, 12:56 UTC. Official data.
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