Riding House Street

Its name derives from a riding house and barracks occupied by the First Troop of Horse Grenadier Guards from 1726 to 1788.

[1] It was purpose-built to house the London Radium Institute, established in 1909 and opened in August 1911.

[1] Wealthier patients could enter through the front entrance in Riding House Street with a poor door for the "necessitous" in All Souls Place.

[1] In 1938 the Radium Institute was absorbed by the Mount Vernon Hospital, with the building housing the central offices and outpatients’ department for the enlarged organisation.

[1] The building was sold following the Second World War and housed the National Society for the Prevention of Cruelty to Children before eventually becoming the home of the Algerian Embassy in 2012.