In Chalfont St Giles, Buckinghamshire, three generations of the Franklin family live on top of each other in a cramped bungalow. They would love to own a spacious two storey house, but their budget doesn't stretch that far. Instead they decide to turn their current home into a family friendly haven. The Riglers in Sydenham, London are desperate to double their bedrooms and bathrooms. They can't build out, so they're building up into the loft. By doing so they will lose all storage space but Sarah is on hand to help them find clever solutions and keep the budget on track.