A campaign to bring down thousands of “no ball games” signs across London – and eventually across the UK – has launched with a “more ball games” takeover on a Lambeth housing estate. The new signs, which show basketball hoops, were designed by the inequality charity London Sport, working with the advertising giant Saatchi & Saatchi, and are being put over “no ball games” signs on the Mursell estate in Stockwell with support from Lambeth council. London Sport estimates there are about 7,000 signs warning against ball play across London’s housing estates, discouraging half a million children from being active.