Kevin McCloud revisits Vicky and Ed, who in 2015 broke free from the shackles of their hectic London lives to try to build a new life in the Somerset countryside. With a budget of just over £200,000, they set out to transform an old derelict cowshed into a 21st-century off-grid smallholding. With no building experience or project manager, they took on this dramatic transformation themselves, learning building techniques from the internet.