This brand-new programme follows luxury property developer Guy Phoenix's rollercoaster journey of buying and renovating a £16million Monaco apartment: the biggest investment and financial risk that Guy has ever taken. His maverick methods, creative genius and unrelenting self-belief have seen him climb to the top of the luxury property ladder in the UK, but Guy sees these as small steps towards his ultimate goal - to build the most expensive and luxurious house in the world! And what better place to begin his mission to conquer the luxury property world than Monaco - one of the most expensive and desirable places to live on the planet. We follow the highs and lows of every aspect of this unique renovation that has Guy's entire reputation at stake. As the finish line gets closer, the pressure and stress on Guy and his crack team of builders becomes almost unbearable. If all goes to plan, his grand vision to build the world's most expensive house will be a step closer. Get it wrong and, well... Guy doesn't even think about that!