PrefaceForewordAbbreviations and acronymsExecutive summarySetting the scene for decarbonising buildingsWhy are cities and regions important for decarbonising buildings?What are cities and regions doing to decarbonise buildings?Key barriers to unlock for scaling up local and regional actionA Checklist for Public Action to scale up building decarbonisationQuestionnaire of OECD Survey on Decarbonising Buildings in Cities and Regions