In 2014, the Metropolitan Transportation Authority started a renovation project at the Lefferts Boulevard station. The renovation including repairing stairs, doors, floors, windows, canopies and painting the station, and added 2 ADA-accessible elevators (1 outside fare control from street level to mezzanine, and 1 more inside fare control from mezzanine to platform level) at the intersection of Liberty Avenue and Lefferts Boulevard. This project was initially scheduled to be completed in April 2016, but delays occurred due to unforeseen field conditions requiring additional work, and the completion date was pushed back multiple times. The elevators ultimately opened in January 2018. The project cost $29 million; $8 million for the station renovation and $21 million for the elevators.