Urban areas are facing water issues like groundwater depletion and floods. To tackle this, better stormwater management is needed. The article discusses ways to improve water quality, reduce disasters, and protect the environment sustainably. It suggests using remote sensing and GIS for optimal stormwater measures, considering community attitudes, and using onsite facilities like water harvesting and ponds. Real-world examples from Japan, Vietnam, and Thailand show how stormwater management can help with water scarcity and climate change impacts.