Access to the platform is at its south end, with a pedestrian level crossing of the eastern track.

A five-track freight yard used by CSX and the Fore River Railroad is located east of the commuter rail platform.

By 1848, South Braintree was the outer terminus for some short turn trains providing local service.

By 1856, Braintree station was located at Elm Street where the South Shore split from the Old Colony, while South Braintree station was located north of Pearl Street where the lines to Plymouth and Fall River split.

[12] Braintree station and the adjacent signal tower were destroyed by a fire, believed to be arson, on July 30, 1887.

[16][17] The New York, New Haven and Hartford Railroad attempted to remove seven grade crossings in Quincy and Braintree in 1908, but met resistance from the towns.

[20][21] The state issued a $9,789 contract (equivalent to $163,000 in 2023) in November 1937 for construction of platform canopies and other improvements related to the crossing elimination.

[26][27] Commuter rail service began on September 26, 1997, when the Old Colony Lines re-opened; the Pearl Street grade crossing was replaced with a railroad bridge during construction.

[30] Although built to last 50 years, the parking garage at Braintree began suffering concrete damage due to water leakage and ill-fitting structural elements.

In 2015, the MBTA began a $4.4 million project to address urgent structural issues with the two garages, though full repair or replacement was still needed.