Banner Homes has announced a “record breaking” start to 2013, acquiring 15 new development sites in Q1. The company, established in 1975, with an average selling price of more than £600,000, has acquired sites across southern England, including three sites in Beaconsfield, Buckinghamshire and others in Alton, Hampshire, Ascot in Berkshire, Kingston Upon Thames, Surrey, and Ingatestone, Essex. Group land …