DELAYED12 months late40% CONFIDENCEMass General Brigham's[1] own page still describes "initial first side of the building opening in 2027", a year earlier than current reporting.First promised for 01/01/2027; now 12 months later. Stated: Mass General Brigham's project page still promises "initial first side of the building opening in 2027", while reporting from the February 2025 topping out says "The 17-story Chambers Tower is slated to open for patient care in 2028".
- Start
- Jan 1, 202840% CONFIDENCELow confidencefrom the source
Mass General's Ragon Building Opens Its First Tower to Patients
The first of two connected towers in Mass General's Cambridge Street expansion takes its first patients, bringing 450 beds and 12 levels of operating, procedural and interventional space for the Corrigan Minehan Heart Center and the Mass General Cancer Center. Turner topped out the steel in February 2025; the second tower is not due until 2030.
- The Phillip and Susan Ragon Building is Massachusetts General Hospital's new clinical care building on Cambridge Street in Boston, on a campus parcel framed by Cambridge, North Grove, Parkman and Blossom streets[1]
- It is built in two phases: Phase 1 creates the below-ground parking levels and then erects the tower closest to the Blossom Street side, "expected to last approximately four years, with the initial first side of the building opening in 2027"; Phase 2 demolishes the Parkman Garage and builds the second tower on the North Grove side, "expected to be completed three years later, with an expected opening in 2030"[1]
- The whole project "will likely involve approximately 8.5 years of phased construction", and the page cautions "This timeline is dependent on many factors"[1]
- The building totals 1.05 million square feet across five continuous podium floors above street level, two inpatient towers and six below-ground levels for parking and support services[1]
- It holds 482 new private single-bed rooms across the two towers, letting Mass General decommission outmoded space in older facilities and convert double rooms to single-patient rooms[1]
- Clinical capacity includes 23 cardiovascular OR/interventional procedure rooms, 100 infusion bays, 120 exam rooms and 13 imaging modalities, plus clinical support space for pharmacy and dietary and an education center and auditorium[1]
- It is home to the Mass General Brigham Cancer Institute and the Corrigan Minehan Heart Center[1]
- The stated purpose is to meet growing demand, "alleviate ongoing capacity challenges in the hospital's Emergency Department and inpatient units", accommodate new technologies, consolidate related services and prepare for patient surges from outbreaks or disasters[1]
- Parking is six underground levels for 864 vehicles "for patients and families only - no staff parking", replacing the outdated Parkman Garage which will be demolished, plus space for 566 bicycles[1]
- The regulatory path ran from February 20, 2019, when Mass General submitted its Institutional Master Plan Notification Form, Project Notification Form and Environmental Notification Form, through the IMP submitted April 23, 2021, BPDA Board approval of both the IMP and the project on October 14, 2021, Boston Zoning Commission approval on November 17, 2021, and a final MEPA certificate on November 15, 2021 finding the Final Environmental Impact Report adequate[1]
- The building is designed to be resilient, "able to withstand major flooding and high winds, serving as a critical resource ... during a disaster", powered almost entirely by renewable electricity with a plan for net zero carbon in operations and construction[1]
- Neighbourhood commitments include ground-floor retail and a restaurant, a glass pavilion arcade on North Anderson Street with exhibits curated with the West End Museum and the Museum of African American History, incorporation of the former Winchell School (later Ruth Sleeper Hall) facade at Blossom and Parkman, a West End senior/community center and food bank, and street-level space reserved for the MBTA as a future headhouse for the proposed Red-Blue Connector[1]
- The project carries "an unprecedented $62 million investment in our local communities" through the MGH Community Health Impact Funds, an anchor hiring strategy and about 1,000 new jobs[1]
- The page's construction updates run to a two-week look-ahead covering 9/14/26 to 9/27/26, so the project was still in construction as of September 2026[1]
- The page gives no bed count for the first tower alone, no number of operating and interventional levels, and does not name Turner or a steel topping-out[1]
References 140% CONFIDENCE
The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
- [1]40%massgeneralbrigham.org/en/about/massachusetts-general-hospital/ragon-buildingmassgeneralbrigham.org· Posted Sep 20, 2026· Starts Jan 1, 2028 ✓· 100% of score
Mass General Brigham's own page still describes "initial first side of the building opening in 2027", a year earlier than current reporting.
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