In 1996, the European Intelligent Building Group organized a seminar entitled, “Intelligent & Green?” to test the hypothesis that the performance criteria for intelligent and green buildings are convergent and not divergent. From this seminar emerged the INTEGER Intelligent & Green Housing Programme, which has successfully produced step-change innovation in the UK housing market. This has been achieved by developing an innovation network involving house owners and managers, designers, builders and suppliers, as well as government and other agencies. Amongst these is the National House-Building Council (NHBC), who set standards for housing construction in the UK. The NHBC is co-operating with INTEGER to develop and implement practical standards for intelligent and green housing, progress on which will be reported through this paper.