How can we rapidly transform the global building sector to combat climate change? This report, based on the OECD Global Survey on Buildings and Climate, presents a comprehensive analysis of the endeavours undertaken by 28 countries across continents to decarbonise and bolster the resilience of their buildings. By examining policy objectives, measures, and trends, the report offers valuable insights into how countries are developing effective strategies for decarbonising buildings. These strategies often involve a step-by-step approach, for example, beginning with targeted measures in buildings that are more feasible or have a greater impact. Successful measures are then scaled up to achieve broader decarbonisation goals. Furthermore, the report emphasises the importance of a multi-level approach, including breaking down silos between government departments. With 93% of responding countries reporting that at least three ministries are involved in decarbonising building measures. The report also underscores the importance of international cooperation and knowledge sharing to fast-forward progress towards a more sustainable built environment.