 From the mid-1950s Drakelow Depot, as it had become, was initially used by the Ministry of Supply for storage.Around 1958 the part of the site in the area north of tunnel 4, formerly occupied by the RAF stores area, was developed by the Home Office as a Regional Seat of Government (RSG 9.2).This was designed to cater for a staff of 325, and contained dormitories, storage areas, workshops, electrical equipment, toilets, offices, a BBC studio, a GPO Telephones communications facility and other facilities.