In Indonesia, water demand is increasing rapidly. Despite its vast water resources, the country faces a number of challenges related to water such as floods problem, degradation of quality and quantity of surface water, and decreasing groundwater levels. Those problems are observed well in Greater Bandung where rapid urbanisation has been accompanied by an increase in population from 6.2 million people in 2000 to 6.9 million people in 2005; it is predicted to reach 11.4 million by 2025. This significant growth of population will create more issues related to water demand in the future. The improvement of integrated water and urban development systems in Greater Bandung will be required to address water quality and scarcity issues in the next 25 years. The objective of this study is to investigate potential water resources by incorporating rainwater harvesting and retention basins design into water and urban development paradigms in Greater Bandung. The application of rain barrels, wetlands or micro pools and infiltration trenches are also presented as viable methods that will help to manage mounting water demands in Greater Bandung.