Altitude, a 27-storey tower by Barratt London off Whitechapel High Street, will be completed this summer, with one-bedroom flats starting at ??475,000 (www.altitude1.co.uk).???And one of the largest projects is Goodman???s Fields, a mixed-use scheme by architects Lifschutz Davidson Sandilands for Berkeley Homes, which includes 920 homes, facilities such as a cinema and health club, a central piazz