It’s morning in the garden of William Christie, and he’s talking about home improvements. ‘I planted three pines up there actually,’ he says, pointing. ‘One blew over in a storm in ’99. But I was able to plant on both sides and create a vista. It’s getting there.’ He gestures across topiary and lawns and away towards the opposite hillside, where an avenue of trees and classical pillars sweeps up towards the skyline.