Watch Grand Designs Season 10 Episode 11 Online

Six years ago Thomas and Dervla O'Hare set out to build a spectacular split-level home cascading down a practically vertical hillside in Belfast. No one in their right mind would have built on such a steep slope; but ambitious young architect Thomas believed he could do anything as long as he put his mind to it. He set up a fast track building programme to complete this enormous, contemporary home in record time.