Building permit intelligence · Boston, MA
421-423 Marlborough St has 22 municipal building permits on file in Ward 5. The latest recorded activity was a plumbing permit permit dated May 27, 2026. Permits at this address represent $100K–$500K in total declared construction value. PropertyLabs also identified 2 mapped permits within 500 m of this address.
back flow preventer for steam boiler back flow preventer for water boiler Water piping
Replace existing steam boiler. Install new boiler for hot water system.
Knob &; Tube Remediation: Remove existing knob and tube wiring and rewire where necessary. (2) bedrooms, dining room, kitchen and hallway. Provide and install 3 new AFCI circuits t…
Kitchen Remodel - install backsplash outlet/update outlet/install disconnect for dishwasher/install outlet for microwave/pull 3 circuits/install power for range hood. Homeowner is…
replace kitchen sink and dishwasher
2 mapped permits within 500 m, shown on the intelligence map above.
12 other addresses on Marlborough St with municipal permit records in Boston.
This address has 22 permit records in PropertyLabs' public history and is located in Ward 5. 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 421-423 Marlborough St is dated May 27, 2026. Municipal records can be corrected or updated after publication.
See the contractors, applicants, permit holders, permit numbers, and project documents associated with 421-423 Marlborough St in the PropertyLabs platform, along with alerts when new permits are filed at this address.
Kitchen Re - Model
DEMO AND INSTALL NEW KITCHEN CABINETS; COUNTERTOPS; AND FLOORING NO STRUCTURAL CHANGES
Replace existing fire alarm system with new fully addressable monitored system.
Remove existing deck, remove epdm roofing system. Install PVC roofing system, install new composite decking to existing foot print.
install rubber roofing over one existing layer
commercial security system- burglary
install 15 windows
pull permits to finsh job rough was done by other plumber
Gas stove & 2 furnaces
gas pipe
condo renovation bringing all wiring up to code
UNIT 12 top 2 floors of bldg. Installation of low voltage combination security and fire warning system with interconnected CO detectors
Gas pipe for 6th floor unit
Rough and finish plumbing
Emergency repairs;remove and replace existing walls of top floor of building, including exterior corragated steel. Contractor to install new copper sheathing as discussed with hist…
interior demo and renovation. no structural work. new kitchen and two new bathrooms, fixtures by owner.remove all carpet and tile. patch repair all wood floors to match existing. p…
repair fire escape rebolt steps rebolt railings replace support brace rear of property