Around 1916, the BERy constructed a yard on the north side of Commonwealth Avenue just west of Lake Street; however, it continued to share the median station with the M&B. On November 20, 1918, an out-of-service BERy streetcar rolled down a hill and destroyed the station, killing a waiting passenger. Remaining M&B service on Commonwealth Avenue was replaced by buses in 1930, and the BERy no longer needed the old median station. A platform and waiting room in the yard opened on September 12, 1930. The M&B used a bus stop adjacent to the new inbound platform. The station was renamed to Boston College on May 21, 1947 by vote of the Boston Elevated Railway trustees after Boston College bought adjacent land for their Newton campus. On May 23, 1979, the MBTA opened a new carhouse at the Lake Street yard. The carhouse provides light maintenance services to reduce the load on Reservoir and Riverside. In early 1980, the platforms were replaced; additional platforms were also constructed along the median east of Lake Street. Not a separate station, they were used when congestion in the yard prevented trains from entering or exiting. The eastbound of these platforms, and a bus shelter on the westbound side, were removed during a 1980-81 renovation of the line.
New station
By 2005, the MBTA planned to relocate the station to the median of Commonwealth Avenue, just east of the Lake Street intersection. Boston College later agreed to aid the project financially and to donate land to widen Commonwealth Avenue to accommodate the station. Around 2007, the MBTA added a wooden mini-high platform on the inbound side, allowing level boarding on older Type 7 LRVs. These platforms were installed at eleven Green Line stations in 2006–07 as part of the settlement of Joanne Daniels-Finegold, et al. v. MBTA. A $296,000 temporary accessibility solution with new platforms, allowing level boarding on newer low-floor Type 8 LRVs, was completed on the existing site in 2009. Planning continued for the relocated station. The project was advanced to 15% design by a $656,000 federal grant and $164,500 of MBTA funds. The design was advanced to the 30% level in November 2012 with an environmental review package completed the previous month, but no progress has been made since, due to limited funding. Once funds are made available, the new station is expected to take 24 months to construct at a cost of $20 million. The new station is planned to have two side platforms, with a narrower platform between the tracks for passengers offloading from outbound trains and a wider platform with canopies for those waiting to board inbound trains. It would eliminate streetcars having to cross Commonwealth Avenue traffic to access the platforms, which will reduce moves across Commonwealth by 89%, though streetcars will still need to cross to access the yard. It will have raised platforms for level, handicapped-accessible boarding on newer low-floor streetcars and a ramp for accessible boarding on older high-floor streetcars.
Bus connections
Boston College station has not had MBTA bus connections since the 535 Lake Street–Auburndale route was discontinued in 1976. Boston College operates a system of private shuttle buses, but they stop on the campus rather than at the station.