AECB, The Association for Environment Conscious Building, is a network of individuals and companies with a common aim of promoting sustainable building. It brings together builders, architects, designers, manufacturers, housing associations and local authorities, to develop, share and promote best practice in environmentally sustainable building.

The AECB was established in 1989 to increase awareness within the construction industry of the need to respect the environment.

The AECB is run by its members and is an independent, not for profit organisation. We promote excellence in design and construction, rather than gimmicks and green accounting tricks. The AECB's standards and advice are founded on a detailed and realistic understanding of the performance of buildings, constructed and refurbished in the real world, for real users.