A fantastic Cornish period house, with several old cars hidden in an overgrown back garden, is sold at an online auction, along with properties in County Durham and south Wales. Martin and Martel tour the houses and meet the owners who plan to give them a new lease of life.

A terraced house in Birkenhead, a large period property in Ramsgate and a one-bedroom flat in a smart block in Hull are all sold at online auctions. One is destined for the rental market, another for a holiday stay, and the last as a main home for one of the developers. But will any of them end up sitting on a profit?