Adequate water supply and sewage systems are a challenge, especially in urban areas. We break new ground: away from end-of-pipe water management towards an integrated approach with small-scale natural and technical plants. Such small-scale systems, such as manmade wetlands, infiltration ditches and sub-soil filtration and bank filtration, promote natural water purification and storage. In addition, they can absorb highly and widely varying pollutant loads, buffer seasonal fluctuations in the availability of water and can be integrated into the urban planning as green infrastructures. The NaWaTech projects implement this in urban areas in India and also focuses on management processes.