Founded in 1965 as the Interior Decorators and Designers Association, it merged in 2002 with the UK chapter of the International Interior Design Association becoming the British Interior Design Association. In 2009, the Secretary of State awarded it Institute status, and became the British Institute of Interior Design.British Institute of Interior Design (BIID): History In 2013, it subsumed the Interior Design Association, a business association representing interior designers working in the commercial sector.
