Ecological sustainability of urban streams has been significantly reversed from the last quarter of the 20th century onwards. This reverse has occurred as a result of increasing urbanisation and human activity, including construction in floodplain areas, relocation and culverting of streams, channelization, riparian clear-cut, and discharge of wastewater into streams. However, on comprehending the significance of urban streams, ecologically-based stream rehabilitation projects have been preferred to hard engineering solutions. These rehabilitation projects not only restore stream ecosystems but also reclaim their contribution to urban landscapes through the provision of ecological, social, and cultural assets. Based on the above, this study sets out to examine urban stream rehabilitation in the context of sustainable water management. In that regard, this research suggests an integrated and holistic approach through green infrastructure tools which can compensate for misguided human interventions on nature, and reclaim ecological sustainability of urban streams and their environs. In line with ecological sustainability, best practices from various countries and the case study of the research evidenced how the degraded stream ecosystem could be rehabilitated by using green infrastructure techniques. The research methodology used in the study involves analysis of the theoretical literature on green infrastructure and stream rehabilitation, best practice analysis, and case study analysis to develop a rehabilitation guideline for Arap Stream and its surroundings. In this sense, the research presents urban-scale, district-scale and neighbourhood-scale rehabilitation strategies for the case study. Finally, the study delivers the rehabilitation plan for Arap Stream that includes in-stream and green infrastructure techniques. Keywords: Stream rehabilitation, green infrastructure, sustainable water management, Arap Stream and its surroundings, urban streams, ecological sustainability