A bungalow near the coast in Dymchurch in Kent, a detached house in Glanamman in Wales and a terrace house in Thornton Heath in Surrey are all sold under the hammer. Martin, Dion and Martel meet the new owners to hear their plans to turn a profit.

Today's auction property-developing projects take an incredible 14 days to more than two and a half years to complete. Martin, Martel and Lucy visit the properties in Sandgate in Kent and Bolton in Lancashireas well as a plot of land in Enfield in London at the start of the projects, following the progress until they're finished. Will any of the investors manage to make money?