It is a family affair as a father and daughter, a mum and her son and two cousins tackle very different renovation projects, from an end terrace to a plot of land.

Lucy Alexander meets three friends who give a top-floor flat in Harrow a high-end finish. And Martin Roberts meets a seasoned property developer in Durham and a PhD student in Stoke-on-Trent who both hope to make money on their three-bedroom property investments.