Benchmarking has become the key business tool to effect change. It encompasses three key elements: a study of key internal processes; comparison with others; continuous improvement. This essential publication is drawn mainly from work carried out as a collaborative project, sponsored jointly by the Department of the Environment (DoE), the Engineering and Physical Sciences Research Council (EPSRC) and representatives from industry. This guide concentrates on the Benchmarking methodology, and is an indispensable publication for construction industry clients, contractors, suppliers and consultants. 66 pages.