It’s the dream of every director of a small, publicly-funded art gallery to gain an anonymous benefactor. And South London Gallery in Peckham got exactly that when they received a very special donation: a Grade Ii-listed former fire station (London’s first to be purpose-built, in 1867). British practice 6a Architects (read more about them in our directory on p83), which worked on the main site’s extension in 2010, has redesigned it to make way for brand-new exhibition and education spaces, as well as an archive, an artist-inresidence’s studio and a communal kitchen. ‘Knock Knock’, the opening show, explores the humour in today’s art: expect work by Brit Sarah Lucas and a flock of concrete sheep by German artist Judith Hopf. Until 18 November (southlondongallery.org).