The 'HST' section of Old Oak Common TMD, more commonly known as 'Old Oak Common HST Depot' closed in 2018 with the removal of the InterCity 125s from services on the Great Western Main Line (GWML). This closure was to make way for the development of the HS2 project. Maintenance of the new InterCity Express Trains is carried out at North Pole IET Depot which is situated opposite the site of Old Oak Common TMD whilst the" Night Riviera" was transferred to Penzance Long Rock Depot in December 2017.