This report explores the impact of urbanization on socio-economic and environmental issues in Cambodia. Due to population growth and rural-urban migration, Cambodia's urban population grew rapidly from 15.7% in 1998 to 21.4% in 2013. However, Cambodia's mostly unplanned urbanization process has resulted in several problems, including lack of infrastructure and services, increased traffic and flooding, and neglect of the urban poor and environment. While urbanization has benefits, it has also led to a growing urban poor population living in inadequate slums. There is a lack of research on the full socio-economic and environmental impacts of urbanization in Cambodia. The report reviews regulatory frameworks and interventions, identifying challenges to advancing more inclusive and sustainable urban