A couple who live in a Regency house in Cheltenham that is expensive to run decide to sell up and build a modern low maintenance house in their back garden. However, height restrictions mean they have to build 60 per cent of their new home underground and neighbours make 90 complaints about their planning application. Undeterred, the pair continue as planned, but the project encounters further problems including the departure of the builders.

Henry Chopping finds his plans to build a new home in Oxford hampered by a listed wall and planning restrictions. With a budget of over three quarters of a million Henry is determined to make his dream home a reality.

An architect plans to build a new house for his family using only white materials. He ends up using stuff more commonly used in commercial buildings.

Jo and Shaun Bennett want to build an Addams Family style Gothic house with a £400,000 budget. With the challenge growing bigger than they ever imagined they face financial problems and struggle to stay within their budget.

Kevin attempts to help Tiffany and Jonny with their dream of creating an ultra-modern, eco-friendly home in Bath in the west country.

Rather than go down the traditional building route, Tiffany and Jonny opted for a German pre-fabricated kit house with great green credentials.

In Maidstone, Jean and Bill Letley, a septuagenarian couple plan a highly contemporary bungalow complete with underfloor heating and prototype steel foundations. The project would test even the most accomplished workmen, but is left to their daughter and son-in-law, who have little building experience and have to make personal sacrifices.

Kevin returns to see how Pru and Richard Irvine fared one-and-a-half years after they began building their bespoke home in the Midlothian countryside.

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Kevin McCloud revisits Philip Trail and his wife Angela who moved to stress-free Surrey and renovated a 150-year-old threshing barn after Philip was diagnosed with a brain tumour.

Five years on, Kevin McCloud goes back to the wilds of Cumbria to see how the Reddy family have adapted to their ecologically sound earth-sheltered home.

In Maidstone, Jean and Bill Letley, a septuagenarian couple plan a highly contemporary bungalow complete with underfloor heating and prototype steel foundations. The project would test even the most accomplished workmen, but is left to their daughter and son-in-law, who have little building experience and have to make personal sacrifices.