This document discusses urban resilience in Southeast Asia. It notes that urban populations are growing rapidly in developing countries, including doubling in Southeast Asia between 2015-2050. This growth will impact vulnerability to climate change depending on infrastructure, settlement locations, and ecosystem management. It identifies challenges like coastal flooding costs rising to $6 billion by 2050 and destruction of protective ecosystems. Solutions proposed include land-use planning, formalizing informal settlements, and development cooperation supporting resilient planning and ecosystem management. Future work will explore linking urban resilience to sustainable land use and ecosystem management.