Ben and Billie (often spelled Billie) are the owners of Château La Grande Maison, a stunning 18th-century property in rural France featured on the popular series Chateau DIY. Both are accomplished professional musicians; Ben is a producer and songwriter who has worked with artists like Beverly Knight, while Billie is a powerhouse vocalist who has performed with legends like Paul McCartney and Annie Lennox. In 2026, they continue to use their château as a creative hub, running a recording studio and hosting "soul choir" retreats and corporate team-building events in their grand ballroom. Their journey on the show is often highlighted by their "living in harmony" approach, balancing massive renovation projects—like installing 12 new toilets and complex insulation—with their vibrant, ongoing careers in the international music industry.