The pavilion restaurant in London’s Duke of York Square, designed by Nex- for landowner Cadogan, packs a lot into a compact form: a slender off-white concrete wall encircles a dining room with a slatted ash soffit, and spirals around the building to enclose a stair leading to a lushly planted roof terrace. Within its in a spiralling façade, the designers have integrated retractable windows that will bring the outside in, when the weather allows!