In 2006, Colin St John Wilson donated works by Michael Andrews, Peter Blake, David Bomberg, Patrick Caulfield, Lucian Freud, Richard Hamilton, R. B. Kitaj, Eduardo Paolozzi, Walter Sickert and Victor Willing.

Hussey's collection included works by Barbara Hepworth, Henry Moore, John Piper, Ceri Richards and Graham Sutherland.

In 2006, architect Sir Colin St John Wilson donated works by Michael Andrews, Peter Blake, David Bomberg, Patrick Caulfield, Lucian Freud, Richard Hamilton, R. B. Kitaj, Eduardo Paolozzi, Walter Sickert and Victor Willing.

As well as modern British art, the Gallery had one of the world's outstanding collections of 18th-century Bow porcelain, donated by Geoffrey Freeman, but it has since been transferred to the Holburne Museum in Bath.

[8] Other exhibitions at Pallant House include Gwen John (2023), Sussex Landscape (2022-2023), Glyn Philpot (2022), Hockney to Himid: 60 Years of British Printmaking (2021-2022), and David Remfry (2015).

Pallant House is a Grade I listed Queen Anne townhouse built in 1712 for wine merchant Henry "Lisbon" Peckham and his wife Elizabeth.

The unashamedly modern block, which stands next to and integrates with the original Queen Anne building, won the 2007 Gulbenkian Prize;[10] in the words of the judges, the juxtaposition creates "a vibrant relationship between old and new ... continued in a series of inspired contemporary installations" which are housed within.