[1] It is accessible via a surface building located along Bartley Road East.
It is connected to Kim Chuan Depot and has underground access for trains to run between both facilities, allowing Downtown line trains to be stabled in the Tai Seng Facility Building, and able to access its remote tracks.
It is used in tandem with Kim Chuan Depot for the operations of the Downtown line.
Construction of the Tai Seng Facility Building began in November 2010 and was targeted for completion in March 2013, ahead of the commencement of service along the Downtown line Stage 1.
[2] When Stage 1 of the Downtown line opened on 22 December 2013, Kim Chuan Depot was used for maintenance and launching of rolling stock for the Downtown line, until Stage 2 was completed on 27 December 2015, providing access to Gali Batu Depot, the Downtown line's main depot.