This Urban Policy Review of Korea assesses Korea’s approach to sustainable urban development as expressed in its recent urban policy reform and national green growth agenda. The government has responded to the economic, environmental and social challenges that have resulted from Korea’s rapid urbanisation process with, on the one hand, urban policy reform based on qualitative urban management and urban competitiveness and, on the other hand, the adoption of a National Strategy for Green Growth that emphasises the role of cities in achieving stronger environmental and economic outcomes. The Review proposes a series of recommendations designed to advance Korea’s sustainable urban policy approach, which include (i) developing a comprehensive, multi-sectoral approach to urban development that is tailored to the different needs of urban areas, (ii) closing the gaps between expected and actual outcomes in urban planning, (iii) maximising economic efficiency in the building and transportation sectors and (iv) improving policy co-ordination across public agencies.