But we meet away from Chelsea, at Gunton Park in Norfolk, which Ivor has been restoring for the past 20 years. While lunching on venison sausages at a sun-dappled table in his orchard, Braka, 54, tells me how he came to be London's most successful dealer to Britain's most successful contemporary artists (Jay Jopling at White Cube sells Damien Hirst, like Ivor, but rarely goes near Bacon, who sells for up to $86 million, or Freud, up to $36 million).