Build addition to the rear of the building
Addition at 231 Foster St, Boston
Boston Inspectional Services Department permit ALT1796865: issued Feb 2, 2026 for addition work at 231 Foster St. Build addition to the rear of the building. New deck at the right side of the building. Basement to remain unfinished. Proposed retaining wall from the front right until the back of the property. 2 new parking spaces.[ePlans].
- Permit number
- ALT1796865
- Issued
- Type of work
- Addition
- Status
- Issued
- Reported cost
- $508,000
- ZIP code
- 02135
- 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 231 Foster St, and what's permitted nearby
Boston Inspectional Services Department updated its data Oct 14, 2026. We checked it Oct 14, 20:52 UTC. See the city's official records.
For agents and scripts: This page as Markdown · JSON