Kevin McCloud hosts the competition run in conjunction with the Royal Institute of British Architects that celebrates excellence in housing design. Kevin is joined by Damion Burrows and Zac Monro as they explore some of Britain's most cutting-edge homes, all of them in the running for the prestigious prize - the Bafta of the architecture world. This time Kevin, Zac and Damion profile five homes that are testbeds for architectural ideas, pushing the boundaries for residential design: a cool, concealed house built from glass and concrete; an uber-creative Wallace and Gromit-style house in Edinburgh squeezed onto a disused plot; a gorgeous, low-slung modern home in Cumbria camouflaged with stone; an experimental extension in London with a Japanese flavour; and an elegant house in Buckinghamshire that combines sustainability with glamour. Kevin then reveals which one has made it onto the shortlist and is in with a chance of winning House of the Year 2016.