Heathfield House, first listed for £40m in 2019, was featured on Channel 4 and has made Rightmove’s top 10 most-viewed properties for four years in a row, but is yet to find a buyer. Why?

In the first episode of Britain’s Most Expensive Houses, which aired on Channel 4 in December 2021, agents from Sotheby’s International Realty gather for an “urgent meeting” about how to sell ...