In Surrey, Stuart Allan, his wife Fiona and their two daughters are desperate for more space. They have saved for nine years to turn their ugly duckling of a house into a New England-style dream home. In Liverpool, Vicky Holmstock has an untouched Grade II listed windmill that she dreams of turning into a luxury designer home. Vicky has submitted five planning applications, worked her way through four architects and still hasn't got her permission finalised. Can Sarah turn around the fortunes of both build projects and save them money on the way?