Colin and Adele have engaged a Swedish architect, an Italian interior designer and a Latvian building company to build their curved glass home. To complete the build, they must overcome contractor issues and the prospect of financial ruin.
A couple on a farm wish to vacate their old asbestos clad home, built after WW2, and buy a modular home from a company 50 miles away from Tunbridge Wells in Kent. The home models are built in a warm dry factory in only 6 weeks.
Ships captain Dorian promised his family he'd build a super-modern underground lair on a hill outside Canterbury. But as the epic build hits choppy waters, Dorian feels forced to take control of the build himself.
In Derbyshire, Mike and Sarah set out to build a 21st Century version of a historic longhouse. But with a complicated roof, a shortage of materials and an unexpected bereavement, it proves far from easy.
In the longest revisit in Grand Designs history, Kevin McCloud returns to Devon to see if Sue and Martin's renovation of two ancient barns has finally come to fruition, two decades on.