Lucy Alexander looks at a derelict house in Surrey where the new owners plan to build four houses, and Martin Roberts meets a novice developer in Crewe and a couple of seasoned professionals in Cheshire. Will they all turn a profit with their projects?

Martin Roberts and Lucy Alexander travel from the south east to the north east of England, before heading to Northern Ireland. The properties range from a bungalow and a terraced house to a unique water tower.