Sussex House School (commonly known as Sussex House), is a boys’ preparatory school located in Chelsea, London. Founded in 1952, the school occupies a house designed by Norman Shaw at 68 Cadogan Square, and since 1994 has operated as an independent charitable trust. It typically has a roll of around 180 pupils. Former students are known as Old Cadogans and include actor Daniel Radcliffe, author Edward St Aubyn, gerontologist Aubrey de Grey, and the filmmaker Matthew Vaughn.