This chapter focuses on Hamburg's Green Network Development Plan (GNDP), the explicit place of health in the plan, and shows how the Grnes Netz is essential to other plans and programs that also aim to improve health. First, Hamburg's plan is placed in the context of green infrastructure (GI) development in Europe and the German landscape planning system where the prominence of health is increasing. For those with a planning inclination, the case of Hamburg reveals how health is an important undercurrent in landscape planning and a potentially powerful motive that, if brought to the fore, can link the environmental and social goals of other plans and administrative authorities. GI development at many scales is continuing to expand in Europe with an EU-wide GI strategy currently being developed and various EU member states creating trans-border regional plans such as the Latvian, Hungarian, and Czech national ecological networks.