The Disco House in Notting Hill, with six floors of evocative spaces in which materials convey mood and character, from the grasscloth screening room and hand-tooled stone spa in the newly created basement, through the three-shaded marble kitchen, past the Villa Necchi- inspired winter garden and the dark rosewood library, to the leather-lined master bedroom with double cedar-lined walk-through wardrobes to a stone and amber glass bathroom. Throughout, a clarity underpins the richness.