Kevin McCloud follows intrepid individuals who attempt to design and build the home of their dreams.
Kevin gets the exciting chance to meet Clinton Dall from Sussex, who's attempting to build one of the largest homes that has been ever featured on Grand Designs, and he wants it to be perfect.
Boat-loving James Strangeways, who has never liked houses, realizes it's time to put down some roots on dry land and commissions his nephew to build him a home that's as un-house-like as possible for a tight budget of £300,000.
Bram Vis, his wife Lisa and their two children launch into a life-affirming adventure on an idyllic seaside plot on the Isle of Wight. They want to build a house for sharing, with generous entertaining spaces and a swimming pool.
Angelo Mastropietro has found a damp, dark abandoned cave in Worcestershire. He plans to spend £100,000 to almost single-handedly turn it into a retreat to help him cope with a recent diagnosis of multiple sclerosis
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Michele Long and Michael Howe want to restore and transform a derelict 100-year-old blacksmith in County Antrim. Keen to get his hands dirty, Michael launches into the project, armed only with a pickaxe.
Private chef Ed Versluys and pilates instructor Vicky Anderson are converting an ugly, derelict 1940s concrete cowshed with amazing views over the Somerset countryside into a comfortable three-bedroom home with straw bale walls.
Stephen Yeoman and Anita Findlay want to put up a cutting-edge, post-industrial house that's covered in bright orange-rusty metal. Their plot is one of the most prominent in their new home town in the South Downs.
Kevin McCloud returns to the Thames in Buckinghamshire to see if the eventful construction of the UK's first amphibious house has been a success. Now that it's finished, can Andy and Nicky Bruce's 220 ton amphibious house really float?
Rebecca and Gregory from North Cornwall were an ambitious couple who turned their single storey bungalow into a cutting edge home. Kevin returns to the couple to see how their home has fared.