Andy and Esther have lived in their three-bedroom house in Stirling, Scotland for almost four years. The couple love where they live, but with three small children, their house is cramped and no longer works for family life.

James and Vicky have lived in their 1970s detached house in Kent for five years with their two young children. Bought for the large garden, they have since discovered the house is completely impractical for family life.

Suzanne and Danny have wildly differing views on how to improve their cramped 1960s bungalow in Bedfordshire. With three children and only two usable bedrooms, they urgently need help, but while Suzanne wants style, Danny is fixated on storage.

Accountants Mimi and Luke have lived in their terraced house in Grantham for five years with their daughter, and Mimi's son. With Luke's two older children often visiting, the unpractical layout is bursting at the seams.

In 2015, Becky and Cris move from a small cottage to a four-bedroom 1960s house in Wiltshire. A family of keen musicians, they hope a large reception room will give them the opportunity to play their instruments together.

When Helen and Rob bought a terraced house in St. Albans five years ago, it needed a lot of work. They've since renovated the entrance and the front room, but the back of the house remains a mishmash of impractical rooms.