The Gaslight Building, 29 – 35 Rathbone Street, London. – Developer: I.S.A Holdings – Interior architecture and design: bureau de change design office – Architects: dMFK Architects – Laser-cut PVD coloured stainless steel in custom Bronze for stairs, lift core and architectural detailing by Double Stone Steel in partnership with John Desmond Ltd. – Showing the lift core cladding and stair handrail – Photography by Gilbert McCarraghe