Dispersal: Picturing urban change in east London

One photograph shows a worker deboning meat for mince beside a pile of ribcages. Another catches salmon being hauled out of H Forman & Son's old cold store. Both were taken around 2005, in the stretch of the Lea Valley you can see from the gallery window.

To build the 2012 Olympic Park, 284 trades and businesses between Stratford and Hackney Wick had to move. From 2005 to 2007 Marion Davies and Debra Rapp photographed 80 of them, in colour and black and white: belt-makers, zinc galvanisers, car repair yards, the Royal Opera House's riverside scenery workshop. You walk out of the pictures and onto the Level 3 terrace overlooking the same ground. One shot shows the towpath under the Northern Outfall Sewer, which joggers now know by its rebrand, the Greenway.

Leigh Hatts, who writes about the Lea, called it "free and rewarding"; Stephen Emms found it "humbling". Entry is free, with late opening to 10pm on Thursdays and Saturdays. It closes Sunday 18 October.