This book provides a comprehensive assessment of the current state of greening the housing sector in five East Asian cities, namely, Tokyo, Beijing, Seoul, Hong Kong and Singapore. For each city, an overview of the housing sector is presented, followed by detailed analysis of green building schemes, as well as regulations and incentives that have been implemented. In addition, challenges that the city's government faced in driving retrofitting and redevelopment of the housing sector are highlighted since they are critical in meeting the net-zero targets as well as increasing new housing supply in these cities. Each chapter also provides examples of successful green residential projects and the role that green finance plays in the transition. The findings and lessons that are drawn from the case studies will allow for identification of obstacles, proposals for new policies and/or the redesign of existing policies and urban regeneration frameworks for each city. These findings and lessons will also inform other cities facing similar challenges either currently or in the future.