Overview: Architectural journalist Kieran Long and architect Piers Taylor are following self-builders as they take on the biggest gamble of their lives. Yet all of them have less than £100k to spend, little or no experience and have their life savings on the line - it will not be easy. Twice-widowed, Sumati Bala thought she had found the perfect spot to spend the rest of her life: a beautifully located cottage in need of updating just outside Berwick upon Tweed. She moved in and planned to run her small cookery school there but the house of her dreams soon turns into a nightmare as serious problems emerged, from asbestos to rising damp. With the house condemned, Sumati is forced to knock down the troubled cottage and try to build a new one in its place. As the bulldozers move in, she witnesses the bulk of her life savings pulled to the ground and with just £50,000 left, she has to start from scratch.