This project comprises a major new extension to, and the related refurbishment of, an existing Grade I Listed Georgian building to house an outstanding collection of modern art bequeathed by the late Sir Colin St John Wilson, architect of the British Library. The plan places the usual public functions – shop, restaurant, library, – on the ground floor with the galleries upstairs served with a nifty double-sided lift making all areas accessible to disabled visitors. This is a place where art is not merely looked at but also made. Galleries are understated, feeling more like elongated domestic rooms than the formal salons. The project offers a satisfying rebuff to the usual fogies and sceptics who continue to doubt the feasibility of inserting modern architecture into historic settings.