It is the third of the eight heats as three more designers battle it out for a place in the quarter-final. This time the amateurs are taking on very unusual and rather beautiful homes in Beckenham, Kent. Built in the 1930s, these homes are classic art deco design - blocky, bright white with a touch of Hollywood glamour. The amateurs are asked to redesign sun rooms at the very top of the houses. Surrounded by glass, they create a unique challenge for the designers.