An inflatable four-domed exhibition centre is being designed by Branson Coates Architects for a showpiece display on UK design. The futuristic £1 million project will house powerhouse: : UK on London's Horse Guards Parade. Each 16mdiameter fabric dome will show high-tech displays on lifestyle, communications, networking and learning. More than 50 designers will be represented in the 1245m 2blow-up centre, equipped with ramps. The exhibition will be opened by prime minister Tony Blair on 4 April, and will end on 19 April. It coincides with an economic and political meeting of Asian and European governments at the QEII Centre.