Biannually since 1994, the European Conference on Product and Process Modelling in the Building and Construction Industry has provided a review of research, given valuable future work outlooks, and provided a communication platform for future co-operative research and development at both European and global levels. This volume, of special interest to researchers, developers and end-users in product and process modelling and construction informatics, contains the proceedings of the 5th ECPPM conference, held in September 2004. It provides a comprehensive overview of European research, as well as an insight in US, Canadian and Australian research. It also highlights perspectives of ambient intelligence and recent industry developments, and in addition, presents the latest developments in e-work and e-business, virtual enterprising, and collaborative work, as well as related best-practice industry examples.