Feilden Clegg Bradley Studios (also known as FCBStudios) is a British architectural design firm, established in 1978, with offices in Bath, London, Manchester, Belfast and Edinburgh. The firm is known for its pioneering work in sustainable design and social design agenda. In 2008, Accordia, which was also designed by Alison Brooks Architects and Maccreanor Lavington, became the first housing development to win the Royal Institute of British Architects (RIBA) Stirling Prize.