Building permit intelligence · Boston, MA
54 Cass St has 8 municipal building permits on file in Ward 20. The latest recorded activity was a insul permit dated May 22, 2026. Permits at this address represent $100K–$500K in total declared construction value. PropertyLabs also identified 5 mapped permits within 500 m of this address.
Insulation
Insulation
Residential weatherization/air sealing. No structural changes. (Site ID) 4378222
Low voltage wireless burglar alarm installation. The alarm panel is mounted on a wall near an existing receptacle. A low voltage wire is dropped down behind the dry wall from the p…
Addtion to frist floor. Kitchen, bath,bedroom,laundry room.
5 mapped permits within 500 m, shown on the intelligence map above.
12 other addresses on Cass St with municipal permit records in Boston.
This address has 8 permit records in PropertyLabs' public history and is located in Ward 20. The city figures below provide context without changing the focus of this exact-address record.
City coverage counts address-linked rows and does not add overlapping canonical tables. Rolling windows are inclusive, use UTC boundaries, and end Aug 1, 2026.
PropertyLabs compiled this permit history from municipal public records for Boston, MA. The latest recorded permit activity at 54 Cass St is dated May 22, 2026. Municipal records can be corrected or updated after publication.
See the contractors, applicants, permit holders, permit numbers, and project documents associated with 54 Cass St in the PropertyLabs platform, along with alerts when new permits are filed at this address.
Install new gas lines for stove, boiler and dryer
Add plumbing for new kitchen bathroom and laundry
Applicant seeks to construct a 16’x32’ addition to the existing single family dwelling. This addition is one story and will extend the first floor only.
Short Form Bldg Permit · ROOF · Jul 20, 2026