 The Gallery's collection is founded on works left to the city of Chichester by Walter Hussey in 1977, which included works by Barbara Hepworth, Henry Moore, John Piper, Ceri Richards and Graham Sutherland.Hussey stipulated that the collection must be shown in Pallant House.In 1989, Charles Kearley donated works by British artists such as John Piper and Ben Nicholson and European artists such as Paul Cézanne, André Derain, Fernand Léger, and Gino Severini.