Kevin McCloud meets college deputy principal Danny who plans on building a four-bedroom house in his garden in North Lincolnshire. He plans to build a stylish, sustainable but affordable home among the trees with dramatic bedroom pods raised on steel stilts on the edge of a fishing pond to help his three children connect to nature. With plenty of ambition but no experience as a self-builder, his £300,000 budget doesn't seem to match the scale of his project.

Kevin McCloud meet Graeme and Melanie who have huge ambitions for a home in Hackney. They plan to build on a tiny twin garage plot with no surrounding land that cost them £275,000 on a traditional Victorian terraced road. Architect Graeme has come up with an unapologetically modernist, bright red-clad design laid out to maximise space over three floors and has set out just 12 months to build it.