The Z58 Building, Shanghai, designed for a lighting products company by Japanese architect Kengo Kuma. A four-storey comprehensive conversion of an existing warehouse, with extensive use of glass, and a facade covered in polished steel trays containg plants. The penthouse suites are for visiting clients, this floor being also surrounded by a shallow moat. A trough surrounding the bath is base-lit with lamps that cycle in colour, shining through a bed of pebbles.