Château DIY: Win the Dream will see aspiring chatelains compete in challenges to prove they have what it takes to win a life-changing prize: an authentic castle in France with multiple bedrooms, living quarters and outbuildings which could be worth up to £250,000 – lower than the average price of a home in the UK. The challengers will compete in a series of heats testing their skills in design, renovation, and business acumen: essential traits they’ll need for running their own property.