It continued in use as an officer's mess through the 20th century (and was extended in the 1960s); however, as of 2018, it is unoccupied and has been placed on the Heritage at Risk Register By the 1930s barrack blocks were laid out in rows to the south of Feltham House, while large industrial-type sheds to the east and further south were served by a set of tramlines linked to the mainline railway.