Building permit intelligence · Boston, MA
300 Longwood Av has 226 municipal building permits on file in Ward 4. The latest recorded activity was a fa permit dated Jul 23, 2026. Permits at this address represent $25MM+ in total declared construction value. PropertyLabs also identified 3 mapped permits within 2 km of this address.
Fire Alarm
Fire Alarm
Electrical
Renovations - Interior NSC
Electrical
Renovations - Interior NSC
3 mapped permits within 2 km, shown on the intelligence map above.
9 other addresses on Longwood Av with municipal permit records in Boston.
This address has 226 permit records in PropertyLabs' public history and is located in Ward 4. 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 300 Longwood Av is dated Jul 23, 2026. Municipal records can be corrected or updated after publication.
See the contractors, applicants, permit holders, permit numbers, and project documents associated with 300 Longwood Av in the PropertyLabs platform, along with alerts when new permits are filed at this address.
Renovations - Interior NSC
Renovations - Interior NSC
Electrical
Electrical
Electrical
Plumbing
Plumbing
Plumbing
Plumbing
Plumbing
Plumbing
Plumbing
Plumbing
Plumbing
Renovations - Interior NSC
Renovations - Interior NSC
Renovations - Interior NSC
Renovations - Interior NSC
Renovations - Interior NSC
Renovations - Interior NSC
Renovations - Interior NSC
Plumbing
Plumbing
Plumbing
Plumbing
Plumbing
Plumbing
Plumbing
Plumbing
Plumbing
Plumbing
Plumbing
Plumbing
Plumbing
Plumbing
Plumbing
Plumbing
Pavillion Global Services Renovations-Security Scope
Electrical
Electrical
Fire Alarm
Fire Alarm
Fire Alarm
Fire Alarm
Fire Alarm
Electrical Maintenance for lighting and general power
Project 21444 - Tel-Data Install
Interior demo/renovation of the global services and waiting areas on the first floor/lobby to relocate global services and provide new waiting area on Boston Children's Hospital ma…
Hospital;Certificate For Hospital Offices On The 3rd Floor;ALT-1728622 Issued 07/08/2025
Bader Bldg 3rd Floor Security camera additions @ 300 Longwood Ave
Hospital;Certificate for Clean Room - Level 5ALT1753762 Issued 8/20/2025 &; A1765364 Issued 10/3/2025
Renovation of hospital space on level 2 of the Main Building for a new Radiology clinic. (460800-1)
BCH Enders Building - Phased project 2026 - 2027 – upgrade electrical infrastructure for elevator improvements. SKAN108X
HospitalCertificate For Prep/Recovery Area and OR Storage on Level 3 at the Farley Building;ALT1544311 Issued 1/18/2024
installation of 15 data cables and demo 2 nurse call buttons for Pavilion 5.
L25048- wire and install telecom on the nineth floor.
MCH Farley 4 Low Voltage
Enders Research Bldg 300/320 Longwood. Install new conduit riser with fiber optic cabling/install new network switches on floors 15, 7, and SB/new DDC enclosure per floor in closet…
Demo existing controls – FCUS, VAVs - 120V power/DDC wiring. ENE584X
Farley 4 - SIM Unit. Complete unit renovation
Job #17250 BCH HU4 Install temporary heat detectors for coverage during construction
Job #20321 BCH Exterior Lighting and power at new whale sculpture.
Renovation of BCH Fegan Building 3rd Floor. Includes new exam spaces and staff support areas.
Renovation of BCH Fegan Building 3rd floor. Includes new notification and initiation fire alarm devices utilizing existing circuitry.
Install (1) damper, pressurization & alarms, ASP, valves, leak detectors, meter, BACnet controllers for exhaust fans. FL B1, 3, 4. ENE597X
Installation of structural concrete and rebar, erecting of steel whale statue, installation of landscaping and lighting
Fegan 3 - Security - Access Control / Video Surveillance cable/equipment installation
Installation of 4 heat detectors for temp heat
Access Control / Video equipment relocation
Renovation to the Hale Building B2 Lab Space
Boston Children's Hospital is renovating an existing office space, adding (3) offices and providing finish upgrades for the surrounding corridor. Approximate project area is 350 sf…
Card access and alarm equipment and cabling installation
renovating office building. replace floor drains, sink, lavatories, toilets
This application serves as an amendment to ALT1753762, as the fire protection reviewer is currently unavailable.
HospitalCertificate for Urology and Urodynamics Clinics on Level 2 @ the Pavilion Building.ALT 1620687 Issued 10/2/24
Job #20143 BCH Enders Tunnel Washer Wiring
L23063 - wire and install telecom for phase 2 at the BCH Hunnewell 4
L23035 - wire and install telecom on the third floor of the Fegan building
Installation of sanitary piping to serve new roof drains (453900-1)
HospitalTemporary for Blood Gas Lab, Prep/Recovery Area and OR Storage on Level 3 at the Farley Building Expires on 12/2/2025 Pending Completion.ALT1544311 Issued 1/18/2024
Boston Children's Hospital is renovating an existing waiting room, converting the adjacent conference room into two offices and finish upgrades for another office. Approximate proj…
Modification of existing FA system - Remove (2) older speaker strobes, install (2) new speaker strobes - 251083
Installation of (9) fixtures, ( 17) outlets, (4) switches, (4) panelboards and (1) transformer - 251083
Installation of water & sanitary waste and vent piping servicing fixtures and plumbing equipment(453400-1))
Renovation of the existing clean room, including demolition of all existing casework, architectural elements, and MEP systems. The new clean room buildout will feature new casework…
Job #19581 Boston Children's Hospital 4th Floor Farley 4 SIM Renovation
Job #19581 Boston Children's Hospital 4th Floor Farley 4 SIM Renovation
Job #19581 Boston Children's Hospital 4th Floor Farley 4 SIM Renovation - Temp fire alarm.
Job #17250 Boston Children's Hospital Level 4 Hunnewell Office Renovations Phase 2
Job #17250 BCH Lvl 4 Hunnewell office renovations phase 2, (2) 100A 300ckt panel.
Install new lab sink
Hospital;Certificate for TAU Area- 4th FloorALT1587982 Issued 8/8/2024
Renovation of the On Call Suite, new baths, and hand sinks
Remove and re-install exiting light fixtures for roof replacement.
Renovation of existing exams rooms and office spaces. Renovation includes a new room layout and associated finishes. Includes modified sprinkler and fire alarm systems for the new…
The project scope for Boston Children's Hospital's Fegan Building includes the renovation of approximately 9,500 square feet of area on level 3 to accommodate Multi Disciplinary se…
Fegan 3 - Demo DDC wiring and devices. Install new DDC wiring for RH coils, setra lites, FCUs, and VAVs. Extend 120V wiring to all new controllers. ENE503X.
Installation of structured cabling for tel/data outlets for Boston Children's Hospital renovation project in Enders Building Level 12.
Job #19450 Boston Children's Hospital Basement Install (1) new 250A MCB 208V and (1) 200A MLO 280V panels in the Hunnewell Building.
Hospital Renovation ****Actual Address is 320 Longwood - Was not listed in system****
Interior demolition of previous out patient health care space and fit out of the new Simulation &; On-Call suite, which includes modifying existing MEP's, Fire Alarm, Sprinkler sys…
HospitalCertificate for Dental Suite on Level 8 @ The Fegan Building.ALT 1578249 Issued 4/26/24
Installation of video intercom devices for security purposes for the Mandell Project.
Renovation of existing second floor Pavilion Building exam, procedure and waiting rooms.
101377 BCH 55 Cables
Job #19150 BCH New power and data for new monitors.
Installation of structured cabling for tel/data outlets as part of renovated space for Boston Children's Hospital Enders Building Levels 9 and 10
Installation of water piping and replacement of RODI pump. (885758-1)
Upgrade to the Hunnewell Building chilled water system, including new heat-exchangers and pumps
Provide and install Contain-It piping on existing to remain waste piping.
Plumbing demo of old fixtures and piping. Re-install sink and new piping. Install new reduced pressure backflow preventers.
Electrical Maintenance for lighting and general power
Job #19063 BCH Martha Elliot 1st Floor Office conversion/renovations
Hale Building - relocating receptacles and tel/data back boxes. WISE151X.
Installation of card access and camera devices for security purposes for the Vaccine Project.
Replacement of existing domestic water booster pump and installation of new one (885742-1)
; Hospital;Certificate for Ophthalmology Offices and Exam Rooms at the Fegan Building Level 4;ALT155048 Issued February 01, 2024
Demo all existing control wiring and devices and install new control wiring and devices. Install new feeders and disconnect switches fed from existing distribution panel for new pu…
HospitalCertificate for Cardiology Offices Floors 1, 2 &; 6 in the Farley/Baden Buildings;ALT1475136 issued 07/19/2023 &; SF1459280 Issued 5/2/2023
Lab Renovation
Lab Renovation ** ACTUAL ADDRESS IS: 320 Longwood Ave. - Isn't listed in System**
Replacement of the existing roof at the Hunnewell Building at Boston Children's Hospital
BCH Enders 9 & 10 Renovations - phased project. Demo & Rework existing branch wiring. Add new branch circuits and outlets from existing panels. Relocate low-voltage switches. WISE1…
Installation of new Cat6A cabling in newly renovated space on Level 1 of the Farley Building
Replace Kitchen Sink
23-0156-10 BCH 120 Cables
Farley 1 & 2, Bader 2 & 6 Phased project. Demo DDC controls on 35 FCU's. Install new DDC control wiring to 12 new FCU's VAV's. Extend 120-volt circuits to all new controllers. ENE-…
Job #18771 BCH Floors 6 & 7 Disconnect & remove nurse call devices & cabling. Install new cabling.
Pavilion 2 - demo control wiring to existing boxes - install new control wiring to VAVs, FCUs, Setra Lights and Setra Flexes - Install new FEP controller - extend 120V circuits to…
Renovation of an existing space and installation of 18 Fire Alarm Devices
32 Light Fixtures, 98 Receptacles/switches in a renovated space
Install 3 new 120V circuits from panel in hallway to serve 7 new receptacles in existing Main 01 ED space. Wise144X
L23035- BCH MFCC Package 2; tenant fit out
Electrical renovation to BCH Pavilion Level 2 work room
Renovation of existing Level 3 of Fegan building. Installation of new water, waste, vent, and medical gas piping to support new multi-specialty clinic. (433300-1 Fegan)
The project scope for Boston Children's Hospital's Pavilion Building includes the renovation of approximately 5,500 square feet of area on level 2 to accommodate the Urology and Ur…
HospitalTemporary Certificate for Offices 210,214,216,&; 218 Farley / Bader Building as well as the Sixth (6) Floor Offices,;Phase 3; Offices of the Cardiology Department,;Phase 4…
Installation of card access and camera devices for security purposes for the Fegan lvl 8 project.
Renovation of existing level 2 of Pavilion building. Installation of new water, waste, vent, and medical gas piping to support new urology clinic. (433300-1 Pavilion)
Job #18412 Boston Children's Hospital 6th Floor Install new Magnetic Propulsion System
Interior fitout of shell space within the Pavilion Building on the Boston Children's Hospital Campus. Scope includes new wall finishes, flooring, and ceilings. New HVAC equipment i…
Job #18473 Boston Children's Hospital 4th floor Install tel-data structured cabling.
Job #18438 Boston Children's Hospital 2nd Floor Install new nurse call devices.
Installation of low voltage cabling for tel/data network as part of renovation to Boston Children's Hospital Fegan 8 Dental.
HospitalCertificate for Dialysis Area - 4th FloorALT1484022 Issued 7/24/2023
Interior demolition of the TAU area, including Architectural finishes, MEP's, etc. Fitout of the entire TAU area, which includes modifying existing MEPs, Fire Alarm, Sprinkler syst…
Installation of card access and camera devices for security purposes for Phase 2 of the Shuffle project.
Installation of tel/data cabling for Boston Children's Hospital renovation project in Main building Level 2. Installation includes new Cat6A cabling for tel/data outlets.
Provide power to 2 new control panels to retrofit existing AHU-11 fans with Fan wall array. Provide power to new fan arrays from control panels. Extend feeder to control panel if n…
OR Renewal phased project- Pavilion 3 Demo control wiring to DDC devices. Install new wiring for VAVs and Reheats. Extend 120V circuits to all new controllers. ENE481X
Job #18116 Boston Children's Hospital 4th Floor Ophthalmology Expansion Project
Job #18116 Boston Children's Hospital 4th Floor Ophthalmology Expansion Project, including (1) 100A 42 ckt panel.
HospitalCertificate for Administrative Offices and Storage on the; Basement Level;ALT1542108 Issued 11/12/23,; ALT1399935 Issued;
Renovations to Fegan 8 Dental Suite
Renovations to the Fegan 8 Dental Suite
Fegan 4 Ophthalmology- Demo DDC wiring and end devices. Install new wiring for FCU's, setra lites, AFMS and leak detectors. Install new FEP with UPS and power supply. Extend 120V c…
Job #18116 Boston Children's Hospital Fegan Building Install temp heat detectors on level 4.
Fegan 8 Dental Suite- Demo DDC wiring and devices. Install new DDC wiring for RH coils, Setra Lites, FCU's and VAV's. Extend 120V wiring to all new controllers. ENE-536X
Renovation of Clinic Space
Added electrical, FA, Nurse Call to Bulletin 3K space in Farley/Pav
Job #18207 Boston Children's Hospital 2nd floor Install (1) nurse call emergency pull station.
Added Fire alarm into Farley/Pav Bulletin 3K Space
Demolition/installation of sanitary waste & vent piping, medical gas piping and water piping for added/renovated dental suites & offices. (438800-1)
Job #18197 Boston Children's Hospital 11th Floor Install new nurse call devices.
HospitalCertificate for Outpatient Clinics;on Level 2 at Farley Building.ALT1447836 Issued 5/4/2023 &; SF1447886 Issued 3/22/2023
HospitalCertificate for Exams Rooms and Office Spaces - 4th FloorALT1488889 Issued 7/20/2023
L23035- Change order fit out.
Installation of card access and camera devices for security purposes for the Shuffle phase 3 project.
24-0082-10 55 cables Panera
Boston Children's Hospital intends to relocate its Dental suite to Level 8 of the Fegan Building. The rehabilitation will include approximately 4,000 sf of gut renovation and fit-o…
Renovation of domestic water and sanitary systems. Includes replacing sinks and drinking fountain. (442700-1)
Install Data Cabling
Hunnewell Floors 1 &; 3 Demo existing DDC controls and wiring. Install new control wiring and wire controls for FCUs, Air flow stations, AHU, EFs and dampers. Install 2 new FEP's a…
Job #17979 Boston Children's Hospital PBX Room Wire HVAC equipment.
Renovation of the 5th Floor Hunnewell Building Offices. Existing fixtures will be used.
Renovation of exiting 3rd floor of Hunnewell building at BCH. Renovation will take place in 3 phases.
Renovation of existing 3rd floor office space. Renovation will utilize existing fire alarm circuitry.
Renovation of the 5th floor Hunnewell Offices. Existing fire alarm will be used.
Renovation of 1st floor Hunnewell office space. Renovation will utilize existing fire alarm.
Renovation of 1st floor of the Hunnewell Building
Boston Children's Hospital is renovating existing offices located on levels 1 and 3 of the Hunnewell building.
Boston Children's Hospital Jobs Receptacles, data, & maintenance installations.
install conduit in Farley basement to utility closet for PA system backbone. Install conduit between floors in stacked utility closets. Install low voltage cabling in conduit to ea…
Project scope includes the pre-purchase of electrical equipment for future use; the installation of 1 Liebert Chilled Water Air Conditioner; the installation of 2 MovinCool Air Con…
Interior non-structural conversion of existing offices into a single storage room within the Pavilion Building on the Boston Children's Hospital campus. Infill of existing doors, n…
Farley 3 Phased Project Demo existing DDC controls and wiring. Install new wiring to FCU's, VAV's, Radiant panels, Air flow stations and Setra devices. Extend 120v circuits to all…
L23063- wire and install telecommunication devices on the 4th floor of the Hunnewell building.
Reconfiguration of exam and office space at Fegan Level 4 to accommodate specialty exam clinical space. Interior fit out of new Ophthalmology Offices and Exam Rooms. New MEPs and f…
HospitalCertificate for 8th Floor Exam Rooms &; PharmacyALT1386347 Issued 9/20/2022
Interior, non-structural renovations of portions of the Farley building at the Boston Children's Hospital Campus per the attached documents.
Adding bathrooms and renovating offices for BCH Shuffle Hunnewell (433300).
HospitalCertificate for 7th Floor OfficesALT1387224 Issued 10/25/2022
Installation of 8 new receptacles in existing space
E23020 Electrical modifications to 3rd floor, BCH, ORs.
E23020 Add FA devices to an existing FA system.
Hospital Renovation - Level 3
Hospital Renovation - Level 3
Interior, non-structural renovations of portions of the Fegan, Main, and Pavilion buildings at the Boston Children's Hospital Campus per the attached documents approved on ALT13999…
Demolition of existing offices located on the 1st floor of the Hunnewell Building of Boston Children's Hospital.
HospitalCertificate for 2nd Floor Radiology Staff Support SpacesALT1392811 Issued 12/9/2022
Renovation of Existing Starbucks Space
Installation of Floor Drains/Floor Sinks/Grease Interceptor, Final Connections to new kitchen sinks, and associated piping.
Installation of Card access and Camera devices for security purposes for the Shuffle Project.
Interior, non-structural renovation of an existing office suite within the Farley building on the Boston Children's Hospital Campus per the attached documents.
359 Cables BCH Farley Building
Installation of card access and camera devices for security purposes for the Farley building on the 4th Floor.
HospitalCertificate for Leadership Office;2nd Floor;ALT1432871 Issued 2/2/2023
43068P-BCH-HUNNEWELL 4 OFFICE RENOVATION-RENOVATION OF LEVEL 4 OFFICE
Hunnewell Building- Phased project Demo DDC controls to FCU's, reheat coils and controllers. New wiring for FCU's, VAV's, split system and install new FEP. Extend 120v circuits to…
Farley 4 Dialysis- Demo existing control wiring and controllers. Install new wiring for FCU's, VAV's, exhaust fans, radiant panels and Setra devices. Install 3 VFD's and control wi…
Interior non-structural renovation of existing office suite within the Pavilion Building on the Boston Children's Hospital campus.
E23020 BCH Pavilion 3rd fl ORs FA add devices to an existing FA system.
E23020 BCH Pavilion Bldg 3rd fl OR rooms electrical modifications.
Renovation of clinical space
Farley 1 & 2, Bader 2 & 6 Phased project. Demo DDC controls on 35 FCU's. Install new DDC control wiring to 43 new FCU's and 5 new VAV's. Install and wire 4 new FEP's. Extend 120-vo…
Alterations to portion of the 4th FL Farley Bldg . Revovation of exisitng Pulmonary Space for new TAU area. Includes temp fire protection and permanent fire alarm. WISE116X TAU
Alterations to portion of the 4th FL Farley Bldg . Revovation of exisitng Pulmonary Space for new TAU area. Includes new lighting, receptacles, and power. WISE116X TAU
Renovations to the existing Pulmonary Space of the 4th FL Farley Building of BCH for new construction of a Dialysis Area. Work includes electrical renovations, temp fire alarm and…
Renovations to the existing Pulmonary Space of the 4th FL Farley Building of BCH for new construction of a Dialysis Area. Work includes new lighting, receptacles, and power.
Interior demolition of Dialysis area, including Architectural finishes, MEP's, etc. Fitout of the entire dialysis area, which includes modifying existing MEP's, Fire Alarm, Sprinkl…