Accounting for nearly 40% of global CO2 emissions and sometimes as much as 70% in large cities, buildings and construction are central to the low-carbon transition. Decarbonising buildings, especially the old stock, through energy efficiency improvements and renewable energy use, not only reduces carbon emissions, but also generates co-benefits in health, energy affordability and the labour market. Additionally, global mega-trends and the transition to a green recovery from COVID-19 provide impetus for stakeholders to take action. Cities and regions have a key role to play and can leverage prerogatives in regulation, public procurement and stakeholder engagement, while addressing multiple governance, capacity and funding gaps. To accelerate and scale up their action, cities and regions need to work with national governments to create an effective governance mechanism. Drawing on the findings of a dedicated survey of cities and regions of all sizes from both OECD and non-OECD countries, this report explains their significant role, explores sub-national policy measures, identifies key obstacles, and provides policy recommendations and a checklist for both national and subnational governments to drive the decarbonisation of buildings in cities and regions.
Cities of all sizes drive national growth and play a critical role in advancing global agendas for economic, social and environmental progress. OECD Urban Studies explore how to define cities and assess their performance on a wide range of policies that affect urban development and the wellbeing of residents, from housing, transport and land use to innovation and metropolitan governance. Urban policy reviews provide a comprehensive assessment of how systems of cities are working in a given country and put forward recommendations to improve the success of national urban policy and apply an “urban lens” to other relevant policies. Thematic reports offer cross-cutting data and policy advice on major topics in urban development such as ageing, migration, climate change, circular economy, metropolitan governance and investment in smart cities.