Kevin McCloud, architect Damion Burrows and design expert Michelle Ogundehin visit five more inspiring homes in the running for the 2019 Royal Institute of British Architects House of the Year, featuring a contemporary London home, a property in the middle of a nature reserve on the Isle of Man, a historical house in south London, a property in Hampshire built with local materials, and a cantilevered black timber box in Skye on a rocky foreshore.