The War Office bought a section of the Pockeridge estate to provide space for Basil Hill Barracks in 1936.

[8][9] Sandhurst Block is a substantial two-storey office building which was built in 1938, reputedly in the style of a monastery to disguise the site's use.

[12] In 2019 Information Systems & Services and a number of organisations were brought together as Defence Digital, with an annual budget of over £2 billion and about 2,400 staff including military, civil servants and contractors, led by the Ministry of Defence chief information officer Charles Forte.

[13][14] Located on the former Basil Hill Barracks site, MOD Corsham is the product of a £690 million development project that was completed at the end of 2011.

The new Global Operations and Security Control Centre (GOSCC) building was built over the capped large Queen Mary vent to the underground facilities below.

[15] The United Kingdom National Distribution Agency (UKNDA) and Electronic Messaging Service (email and secure dial-up) are also on the site.

[10][34] The site served as the headquarters of the British Army's 2nd (National Communications) Signal Brigade until it was disbanded in 2012.