Since the signing of the Paris Agreement in 2015, CO2 emissions from the buildings and construction sector have peaked in recent years and subsequently fallen to 2007 levels in 2020. This current decline is due mostly to the COVID-19 pandemic, whereas transformative, long-term progress in sector decarbonizing remains limited. However, since 2015, some emission reduction in the power sector is visible and more countries have adopted policies and codes that may have a future impact on the emissions and energy efficiency of buildings.