Kevin McCloud follows a project to renovate and extend a classic 1920s cinema in Thorne, South Yorkshire. With little knowledge of restoration, Gwyn and Kate boldly set about turning the dilapidated building into a family home using masses of concrete after taking advice from an architect friend. The couple are hoping to create a hydraulic glass wall that opens up one side of the house to form a UV-filtered canopy, and there are also plans for a white roof extension that resembles a diving board.

Jonathan Broom and his wife Deborah have put everything on hold while he pursues his dream of building a mini Hollywood Hills-style mansion right in the gritty heart of north London. For ten years Jonathan Broom has been obsessed with building his own home.They finally stumble across a scrap of land right in the gritty heart of North London, but it's fraught with problems, and the only way they can build their wildly ambitious £1million pound family home, complete with nanny flat and swimming pool, is by sinking half of it six metres below ground. It's a project that pushes the couple and their builder to the very limit. Desperate to make every penny of the budget stretch, Jonathan strikes every deal he can, and even sells his business to raise funds. Originally scheduled to take a year, this giant hole in the ground consumes their money and lives for much longer.

Kevin meets Martin and Kae Walker, who want to build the ultimate family home inspired by a giant farm shed.

When he lost three limbs in Afghanistan, Jon's life changed forever. Now he wants to build a house that allows him to live independently. The design is cutting edge, but the budget spirals. Marine captain Jon's life changed forever when he stepped on a land mine. Before his injuries, home for Jon had meant a crooked chocolate box Devon cottage. After countless viewings of uninspiring specialist dwellings and awkward conversions, they realised that the only way to get a house that would enable Jon to live independently was to build it themselves. The design boasts sleek glass walls, open plan spaces and a dramatic wing-like roof. Crucially the design concept is for there to be no noticeable adaptations due to Jon's disabilities. Despite his lack of experience, Jon decides to project manage and calls on the support of a number of military charities for this hugely ambitious project. The pressure to finish on time increases when Becky discovers she is pregnant.

Kevin meets flying instructor Colin Mackinnon and trapeze artist Marta Briongos and the incredible metal home they're building next to their very own airfield in Strathaven, Scotland. There aren't many people in Britain who can say they own their own airfield. But Colin and Marta Briongos are part of the very select few. The airfield is so important to them, they've decided to live there too. Their ambitious plan is to build an incredible metal sculptural home next to the runway, designed by one of Scotland's most eminent architects and inspired by aircraft hangars. But the difficulties of building their beautiful design soon become apparent. And before the project is barely off the ground they're contending with violent rain, snow, 100-mile-an-hour winds and the worst storms for 100 years. With work slowed down to a snail's pace, what was supposed to be a year-long project heads into its third year.

Tamayo Hussey's missed Japan ever since she moved to the UK with her husband Nigel. To stave off the homesickness they've decided to transform a forester's lodge into a Japanese house complete with roof bath, tatami room and sliding paper walls.

A young couple want take on an average 1950s house and turn it into an architectural masterpiece.

Kevin meets a master craftsman whose dream is to build a castle made entirely of mud.

Confirmed city dwellers Michael and Phil have moved to the country to run a farm, start a micro brewery and create in a vast, dramatic 21st-century farmhouse to live in.

Kevin catches up with the story of a daring modernist home in the Andalucian hills in southern Spain..

Six years ago Lucie Fairweather and Nat McBride began to build an affordable eco home in Woodbridge for themselves and their two young children. However, their journey was to be about more than bricks and mortar. Just before they got started, Nat discovered he had cancer, and after just a few months he passed away.