The Chartered Institute of Building (CIOB) is a UK-based international professional association which exists to promote and advance for the public benefit the science and practice of building and construction. Originating in 1834 as the Builders Society and incorporated in 1884 as The Institute of Builders, the institute was renamed the Institute of Building in 1965 and granted its royal charter of incorporation in September, 1980. The institute has some 45,000 members of whom 80 per cent reside in the UK and the others are in branches established in over 100 countries.