This report presents the outcomes of a pilot study exploring how the building and planning system is delivering a sustainable built environment in Australia. It identifies four key issues emerging from the research highlighting both the challenges and opportunities in implementing ESD in the built environment in the Victorian context. These are: 1) the gap between the planning and building system; 2) weaknesses in the planning system; 3) governance, inconsistencies, and coordination; and 4) improving the system – networks and advocacy.