Building permit intelligence · Boston, MA
121 River St has 12 municipal building permits on file in Ward 17. The latest recorded activity was a fence2 permit dated May 18, 2026. Permits at this address represent $10K–$50K in total declared construction value. PropertyLabs also identified 4 mapped permits within 2 km of this address.
Fencing Renovation >6ft
Fencing Renovation >6ft
Fencing Renovation >6ft
Roofing
Roofing
Electrical
4 mapped permits within 2 km, shown on the intelligence map above.
12 other addresses on River St with municipal permit records in Boston.
This address has 12 permit records in PropertyLabs' public history and is located in Ward 17. 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 121 River St is dated May 18, 2026. Municipal records can be corrected or updated after publication.
See the contractors, applicants, permit holders, permit numbers, and project documents associated with 121 River St in the PropertyLabs platform, along with alerts when new permits are filed at this address.
Fire Alarm
Install new 100amp OH 120/240v service on utility pole#1833/1. Pole is actually on Idaho St. near River St. Eversource WO#2352598. Service is for verizon wireless antennas.
insulating ext walls with blown in insulation
Replacing a faucet and shower trim.
bathroom renovation
remodel bathroom, replace two kitchen windows.