The original London and North Western Railway locomotive shed in Bletchley was a wooden and galvanised iron building that catered for some twelve engines, with three roads accommodated within the facility.

[2] However during the 1870s the shed collapsed in a gale, burying stabled locomotives and was replaced by two gabled roof spans with numerous ducts and chimneys.

[4] London Midland phased in the fleet of 37 Class 350/2 Desiro trains, which are maintained by Siemens at the Kings Heath Depot in Northampton.

[8] In July 2023, three British Rail Class 150 were transferred to Bletchley TMD, in preparation for their introduction to service on the Marston Vale Line.

When completed in autumn 2025, Bletchley TMD will "become the principal maintenance base for WMT’s newly procured Class 730 Aventra fleet".