Natasha Cargill wants to build a home shaped like two enormous periscopes in rural Norfolk. To get planning permission, she has to ensure not only that the materials used are sustainable, but also agree to measure the transportation used to deliver them. The planning controls are so rigid in fact that even details like the type of portaloos the builders use and the size of her bath have to be monitored. If the strict criteria are not met, Natasha won't be allowed to live there. Natasha has just £330k to spend on construction and just six months to complete. It's not long before the pressure to not just complete the house, but meet the numerous planning constraints, starts to take its toll.