The ambitions of the 3Rs project focus on positioning water harvesting as an integral part of Jordan’s national water management, as well as, climate adaptation and resiliency efforts. The project is driven by the scoping study funded by the Netherlands Embassy in Amman (October 2021). The Netherlands Embassy invited INWRDAM, Acacia Water and the UNESCO IHE Delft to initiate national water harvesting dialogue, draft a water harvesting policy and guideline, conduct studies and implement rainwater harvesting interventions, based on the 3Rs (Retention, Recharge, Reuse) and integrated water resource management approach. Furthermore, there is a strong emphasis on capacity building and knowledge dissemination as core components in the scope of work. Our consortium and experts present the case and methodology for instituting water harvesting with complementing policy and capacity building action, as a sustainable approach for enhancing the resilience of communities and ecosystems most vulnerable to the impacts of climate change and population growth in Jordan