[2] Casson was born in London on 23 May 1910, spending his early years in Burma—where his father was posted with the Indian Civil Service—before being sent back to England for education.

[4] Casson was educated at Eastbourne College in East Sussex, then at St John's College, Cambridge (1929–31), where his subject was architecture, after which he spent time at the Bartlett School of Architecture in Bloomsbury, London, and the British School at Athens.

[11] After the war, and alongside his Festival work, Casson went into partnership with young architect Neville Conder.

[7] Casson was a friend of members of the British royal family and is reported to have taught watercolour painting to Prince Charles.

[13] From 1953 to 1975, he was professor of environmental design at the Royal College of Art, where his wife Margaret was senior tutor.

[19] From 1982 to 2017 Private Eye magazine gave the Sir Hugh Casson Award for the "Worst New Building of the Year".