Green Infrastructure (GI) is a valuable tool for addressing ecological preservation and environmental protection as well as societal needs in a complementary fashion. This study developed a definition of Green Infrastructure projects based on terminology and working definitions used in different EU member states and identified a set of European green infrastructure projects and initiatives with a view to operationalise the Green Infrastructure concept and create a typology of GI projects. Thereafter the study analyses green infrastructure projects carried out by EU funds or as national initiatives and provides elements of their design and process used to implement them on the ground, estimates of their cost and benefits, and of their potential to respond to multiple objectives (biodiversity management and enhancement, increasing resilience to climate change, protection against natural disasters, etc). Furthermore, the study reports on the potential of current EU policy(-ies) and available funding instruments to promote green infrastructure projects and provide for the capacities and planning needed to develop and implement them on the ground and provides recommendations for EU, national and regional/local policy makers to take them up when designing Green Infrastructures policies and projects.