Building permit intelligence · Boston, MA
343 Commercial St has 214 municipal building permits on file in Ward 3. The latest recorded activity was a electrical permit dated Jul 9, 2026. Permits at this address represent $5MM–$25MM in total declared construction value. PropertyLabs also identified 5 mapped permits within 500 m of this address.
Electrical
Plumbing
Plumbing
Renovations - Interior NSC
Renovations - Interior NSC
Change Occupancy
5 mapped permits within 500 m, shown on the intelligence map above.
5 other addresses on Commercial St with municipal permit records in Boston.
This address has 214 permit records in PropertyLabs' public history and is located in Ward 3. 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 343 Commercial St is dated Jul 9, 2026. Municipal records can be corrected or updated after publication.
See the contractors, applicants, permit holders, permit numbers, and project documents associated with 343 Commercial St in the PropertyLabs platform, along with alerts when new permits are filed at this address.
Change Occupancy
Change Occupancy
Change Occupancy
Change Occupancy
Low Voltage
Low Voltage
Low Voltage
Low Voltage
Low Voltage
Low Voltage
Low Voltage
Low Voltage
Low Voltage
Low Voltage
Low Voltage
Electrical
Plumbing
Fire protection and fire alarm drawings. Cost is reflected on; Alt1644107
Interior/Exterior Work
Low Voltage
Electrical
Fire Alarm
Electrical
Plumbing
Electrical
Renovations - Interior NSC
Electrical
Other
Plumbing
Plumbing associated with remodel
Fire Alarm
Unit 108 3600 SQ Ft Complete Rewire of new residential condo
Second floor bathrooms renovation( 2 bathrooms)
Plumbing
Plumbing
Interior/Exterior Work
Unit 109 Change Of Use - Convert an existing commercial office space into a residential condo and interior renovation without any structural changes.
Change of occupancy from office to residential;single family condo, new partitions, new basement concrete slab, heating and cooling systems, updated electrical and;plumbing. Struct…
Renovations - Interior NSC
Plumbing
APT 212 *Kitchen - upgrade * Master Bathroom - Add 01 Outlet By the Sink
Fire Alarm
Apt 502 full rewire
Plumbing
Fire Alarm
Fire Alarm
Low Voltage
Renovations - Interior NSC
Renovations - Interior NSC
Demolition - Interior
Other
Electrical
ONLY LABOR FOR: Remove an existing wall, Frame a wall and a door with 2x4 pine and sheet rock for an office and Framing a wall partition with a door for an office. All in basement…
Relocate existing heat detector and 2 low frequency horns inside unit 508/608 due to renovation of space. No fire alarm devices are being added or removed.
Unit 508/608. Supply and install larger sliding doors at patio in place of existing smaller sliding doors and side lites requiring structural work. Affidavit to be provided by stru…
Moving dishwasher outlet over to new location
Replace kitchen cabinets.
Unit 506 - Relocate (2) existing low frequency fire alarm horns into new bedroom walls. Lower existing heat detector at unit entry door to new ceiling below.
Plumbing associated with remodel
Interior renovation to Unit 508/608 to include all finishes: new wood floors, doors,trim, bathrooms, kitchen, skylights and porch slider, HVAC, lighting, cabinetry, closet interior…
APT 506 Full rewire
Apt. 506 Renovation two bathrooms, laundry. kitchen and install electric water heater
Renovate 2 bathrooms, kitchen, flooring and paint.
Power for electric fireplace. Remove 34 recess lights and install new recess lights
Replace (1) existing kitchen (2) bathrooms (1) laundry
Complete new re wire Existing service to remain New branch circuit wiring new lighting
Complete Condo Renovation - Unit 606
Reno 1st floor - Kitchen sink, DW, WC, Lav 2nd floor - Laundry , (2) Lav, Shower, WC 3rd floor - Shower, WC, (2) Lav
Relocate existing Fire Alarm devices inside unit 607/608 that is being remodeled. All devices are existing. 1 Heat detector at front door. 2 low frequency horns, 1 in each bedroom.
Apt 306 Full Rewire
Install vanity, shower and toilet
Remodeling two bathrooms, one kitchen, laundry and install electric water heater.
Renovation of existing condo unit #402 to include demo, framing, kitchen, 2 bathrooms, flooring painting, electrical, plumbing. No structural work needed.
Remove and relocate wiring and power pedestals to new dock sections. Replace existing breakers in power pedestals with new GFI protected breakers.
Unit 406: Renovate kitchen and 2 bathrooms, relocate utility room mechanicals
Unit 604 Renovate bathroom Remove tub and create shower area no tub Remove and replace floor tiles vanity and toilet
Rewiring: 02 Bathrooms/Kitchen/03 Bedroom/Laundry
Unit 306 - Renovate kitchen, 2 bathrooms, install new lighting, refinish floors, and paint unit.
rough and finish electrical on UNIT 26 renovation
Unit 406 - Renovate kitchen and two bathrooms. Install partition walls, lighting, refinish flooring, and paint unit.
Rough and finish plumbing
Minor structural modification to Unit 606 in conjunction SF1304361. Modification to an existing rough opening to accommodate a larger sliding door to patio. Replace existing header…
Plumbing associated with full remodel
Demo existing floor framing and install new I-joists per engineer's drawings. New floors to be framed 1 through 3.
vinyl side existing structure which surrounds dumpsters
Inspect all substrate for any damaged lumbar. Replace up to 100 linear ft. at no 0.00 cost, $7.25 anything above that. Rear Roof Renail any loose deck boards back into rafter. 0.00…
Balcony maintenance and minor repairs where needed
14 fixtures on 3 floors.
Install 5 CATV jacks
TH-15 @ Union Wharf: Rewire of 3 level townhouse relocate electrical panel to side wall entry
Interior renovation to Unit 606 to include all finishes: new wood floors, doors, trim, bathrooms, kitchen, skylights and porch slider, HVAC, lighting, cabinetry, closet interiors,…
disconnected all branch circuits in main panel and subpanel upstairs. pulled all wiring from panel made electrical safe for demo team
bathroom fixture replacment
Open existing walls for exploratory review of pipes,wiring. per alt
TOWNHOUSE #8 Removal of int. wood beams with flush mount steel beams as per plans. Install of new skylight. Structural support of existing bay window to replace support of existing…
Rewire whole unit
343 commercial st unit #8,union warf,Townhouse 2.full bath 1.half bath Kitchen Electric hot water tank.
Remove and reframe and redesign all interior walls(they are not structural) per attached plans Remove wood beams and replace with steel(per attached plan) Replace 5 windows 3 slide…
rewire bathroom IN UNIT 407
Demo and remodel bathroom. New tile and sheet rock
Remove and Replace existing kitchens bath interior trim, hardwood floors, add coffered ceilings, custom cabinetry, entertainment centers, 2 replacement windows, raised panels on st…
update bathroom
3rd floor bathroom remodel. Re-locating master shower, double vanity, and toilet.
Gut renovation of master Bathroom
Remove and replace all wood floors. Remove and replace kitchen backsplash. Repaint entire unit!
Remove existing light fixtures in common hallways and lobby areas to install new wallpaper and then re-install. Install new exposed branch wiring in common areas and hallways to in…
Kitchen renovation
disconnect/reconnect appliances, add under cabinet lights and wire pantry
Remove and replace kitchen cabinets, appliances, counters, plumbing fixtures and flooring.
Renovation of lobby, hallways, stairways, and elevators to include flooring, doors, ceiling, paint, wall coverings, wall protection, and light fixtures. Work to be performed on all…
Upgrade kitchen and replace track lights
Unit 311-Renovate Kitchen. Work includes the cost of;electrical and plumbing.
Full renovation of (2) bathrooms, minor upgrades in kitchen for new backsplash/countertop, lighting alterations and upgrades throughout unit.
Renovate two 3rd floor baths and one 3rd floor kitchen
Unit # 314 Union Wharf. ;Bathroom and closets remodel, new flooring, cabinetry, lighting and paint.
Disconnection of half bath as well as kitchen Reconnection of half bath as well as kitchen
Update Kitchen, 1/4 Bath and Change lighting
Demo and exploratory work for long form
Unit 101-Kitchen and bathroom remodel
New Kitchen New guest bed New Master Bed new master bath New lighting
Relocating bathroom group to accommodate new lay out Relocating the kitchen drain to accommodate new lay out. Installation of a new water heater. Connection of laundry connection i…
Install new hardwood flooring Renovate Kitchen Renovate master bed&Bath
Security System (3000) pulse h/wired panel, h/wired siren, h/wired keypad, 1 touchpad, cellguard, ihub, 5 h/wired smokes (town house #20)
Security System Upgrade too (3000) pulse h/wired panel, h/wired siren, h/wired keypad h/wired keypad (113 Union Wharf East)
2 baths, kitchen and laundry for condo
Total rewire of second floor unit
Install data line in second floor residential unit
Installation of new Guardrails along roofs edge.
Pour new slab on crawl space under existing fire place for fire proofing. No structural work
Wire new 2 bedroom, 1 kitchen, 2 baths, laundry, living and dining rooms. Install smoke and CO. wire utilites and appliances
Renovations on two bathrooms and a kitchen.
Unit #209 - 2nd Floor: Interior renovation to include new layout, kitchen, and bathroom. Install;a sprinkler system in unit,;update electrical and plumbing as per plans. Partial co…
bathroom rehab
Replace plumbing fixtures for 1 bathroom unit 202
Interior demolition of unit #209
Change of occupancy from 1 commercial office to 1 residential unit, and associated reonvations as illustrated on the attached plans No changes to exterior elevations, or building f…
Bathroom Remodel, new plumbing , Electric &; Painting ( unit # 202 )
Install Smoke and Heat detectors in this single family residence per NFPA guidelines
Install low voltage Burglar and Fire alarm in this single family residence.
Replace existing fire alarm panel & devices.
Project is at #310 Union Wharf. We will be installing 1 dishwasher, 1 garbage disposal, 1 kitchen sink, 2 lavatorys, and capping off a hot and cold water line.
install door unit
New master bedroom, New Master Bathroom, New Half Bath
replace plumbing fixture for 2 1/2 baths
- Kitchen remodel - trench floor slab for wiring to island
Work in Unit #209 ;Interior renovation new kitchens and new bathrooms, electrical and plumbing
unit # 501.... Rewire all from existing feed.
Project is at 310 Union Warf Remove existing cabinets and replace with new cabinet and counter top Remove and replace existing floor and replace with new hardwood Paint
rewire office as needed. unit #112 bottom floor access from outside
Remodel office area, modify kitchen to make smaller, new half bath , new doors & electrical.
Demo interior kitchen-bathrooms ceilings & walls
renovate 3 baths and 1 kitchen 1 laundry 2 bar sinks.; Townhouse 10
Replace the existing fire alarm control panel and system in the entire building.
renovate 2 baths 1 kitchen 1 laundry
rewire
Replacement (2) w.c (2) s.v. (1) tub (2) vanity - Unit #402
wire 2 bathrooms to code, move 2 switches, add smoke detectors, 2 recess in bedroom closet and low voltage for 2 wall hung tv
townhouse 10- remodel three bathrooms and kitchen, new electrical and plumbing, refinish floors,paint.
new kitchen,two new bathrooms,sand floors,paint,new electric and plumbing in unit 207
Painting, new bathrooms, cabinetry, expand closets, new kitchen tile floor and appliances
Replace existing Digital Communicator with an AES Central Station Radio Transmitter
Re-wire some electrical switches, pool pump, and some convenience outlets
Repair exterior walls and roof of pool house shed enclosure
One (1) Office, 37 Residential Units; Certificate for Unit; #104 Only ALT493941 Issued 10/23/15 and SF474664 Issued 6/1/15
Modification to existing fire alarm at Unit 104 343 Commercial Street
Inspect, clean, repair dryer and exhaust vent per violation number V282114
Bathroom Renovation
remodel four piece bath group
Remoldel Bathroom Remove and install new fixtures supplied by owner
Change existing commercial space(2 Offices,36 Res Units);to 1 Office, 37 Res Units; - by remodeling kitchen, baths, and laundry - UNIT #104
Move switches for staircase separating 2 condo units
Security System upgrade 343 Commercial St Unit #312
Move switches for stair case separating 2 condo units
remodel kitchen 2 baths 2bedroom living rm/dinning room
Rough and finish: 2 full bathrooms 1 double lav 1 laundry 1 kitchen
Remodel of kitchen, baths, and laundry
REPLACE= 2 TOILETS ,2 LAVS ,1 BAR SINK AND 1 KITCHEN SINK WITH DISHWASHER IN BASEMENT
38 Apartments. Alt40770/2014 COO for 1 Apartment (Unit #105) Alt178264 issued 11/2/2012 &; A270718 issued 8/27/2013
Electrical remodel of 2 bathrooms, wiring of new partition wall, relocate panel to new wall 2.5 feet forward, change all devices to new and change existing recessed lights to Led
Renovation of kitchen, bathrooms, washing machine, and water heater at unit 301
38 Apartments Certificate of Occupancy for Unit #114 - ONLY ALT407770, issued: 10/7/14 ;
Wire residential unit fire alarm per Boston Fire Permit #BFDF434497
replace wiring where required due to water damage. also replace emergency lighting, fixtures as required
Light Demolition of existing bathroom accessories, replacement of electrical fixtures which were damaged by flooding, new flooring throughout, installation of new plumbing fixtures…
Interior remodel work- No structural work-all interior work. Master bathroom new fixtures:Tub,shower,toilet,vanity.New kitchen cabinets and appliances. Powder bathroom enlarged to…
Wire remodeled apartment #11 complete, basement and first floor level. Upgrade service.
Replace electrical panels and breakers in office space as a result of water damage
Re-wire existing landscape lighting, provide temporary power wiring from existing panel for jobsite trailer and temporary lighting.
Speaker Wires and Television Connections
Installation of Audio and TV system
Complete interior finishes,new plumbing,electrical and HVAC. New kitchens and baths. new stairs
Renovation of bathrooms,kitchen&laundry.
Rewire condo unit including new kitchen and baths , engineered drawings avail on site. Security and fire alarm by others
Change of occupancy of 343 Commercial st unit 114 a 1st floor/garden level office with exterior entrance to a on unit town home residential style condo. 1st floor to have Master be…
foundation repairs to building.
Interior demolition of unit 114. Removal of all non structural walls, floors, fixtures and finishes for future condo fit out.
Interior demolition of finishes and non bearing partions
removal of water impacted sheetrock from floors and walls work in Unit 10 Union Wharf
- Install Low Voltage Security System
Amend permit ALT178264 to Add structural support for stairway and glass floor.;Add additional structural support on existing support beam to facilitate installation of new proposed…
Renovate kitchen, Bath room and bed room. New cabinets, counters, bath fixtures, sink toilet tub ,tile build bedroom closet. Unit 407
Install rough and finish plumbing for 3 full baths, kitchen,laundry.
Rough wire new single family residential condominium. New outlets, lighting, and smoke detector wiring. Replace existing electric panel with new.
Install wiring for remodeled kitchen and bathroom.
renovation of kitchen includes moving washer dryer
Rebuild Fire Place; appro. 20"x7'X10' on unit 407 4th floor
Demo existing plumbing. Install new drainage and water piping for fixtures from proposed plans.
Change occupancy of;1st flr office w/ extension of office use into basement;to a one unit town house residential style condo.; Removing all existing partitions which are non-load b…
Certificate of Occupancy · ADDITION · Jul 21, 2026