In this paper, the authors explore the characteristics and requirementsof digitally supported ‘green’ building design. Well planned, integrated and interdisciplinary digital design practices play a vital role in the iterative processes of sustainable building design. Unlike traditional ways of working, the management of design information and process integration in green building design involves a wider range and a larger number of consultants utilizing sophisticated environmental modelling and analysis systems. To understand the complexities surrounding information management in this context, the authors focus on issues relating to: 1) information exchange and model management, and 2) multidisciplinary design process coordination. Different aspects of sustainable design modelling methodologies are explored in relation to technology requirements, information exchange, and multi-disciplinary collaboration. Finally, the literature is synthesised in a conceptual roadmap framing the key factors identified by the study.