This project aims to deliver tools and technologies to facilitate decentralized and efficient management of natural resources in cities by (1) optimizing and implementing a membrane bioreactor technology for grey water treatment so that it produces sanitary safe water for multiple uses and is economically feasible, (2) developing an integrated design framework for decentralized management of resources in cities, by coupling the developed MBR with complementary existing technologies and (3) mapping opportunities in selected case study, to serve as analysis of the market potential for the future product(s).