The staircase was a challenge: it was fabricated out of concrete prior to us starting on the project, and with marble cladding and a glass handrail it provided no obvious fixing points for the lighting. We came up with the innovative solution of little LED ‘mushroom’ lights mounted on the outer edge of each step: these provide a wonderful sculptural wash rising up to the steps rising up to the first floor. They are complemented by uplighting of the smooth side of the curve under the steps, and a wonderful antique crystal chandelier hanging in the central void. Photo courtesy of Simon Warren