The team help transform the home in Bidford-on-Avon of a woman suffering from mastocytosis, a rare genetic disorder, who has been forced to stay in the living room of her family's house under constant care since her diagnosis at the age of 18. Nick Knowles, Laurence Llewelyn-Bowen and hundreds of Warwickshire volunteer builders redesign the entire house to provide Chloe with independence, creating a self-contained apartment complete with bedroom, wet room and sitting room within her family home.