Over the last three decades, the sustainability movement within the built environment sector has been on a journey. The industry has never been more advanced than it is today. This was demonstrated through the flagship Cities, Regions and Built Environment day at COP26, and the inclusion of built environment parameters within the Glasgow pact – covering both buildings and infrastructure. The Nationally Determined Contributions (NDCs) are at the heart of the Paris Agreement and crucial to the achievement of its long-term goals, embodying efforts by each country that support an integrated approach to sustainability. Traditionally, the green building movement focused on operational energy use, efficiency and primarily environmental concerns. However, the scope and breadth of this sustainability ambition has dramatically expanded. It now encompasses the diversity of the UN’s Sustainable Development Goals, to be considered across all stages of the building and construction lifecycle, plus the communities and infrastructure that serve our buildings, and the built assets themselves.