The striking meandering shape ensures that the HumboldtHafenEins in Berlin instantly catches the observer’s eye. And that’s no bad thing, because this new city landmark is a shining example of sustainable building. Project developer OVG Real Estate received the platinum seal for HumboldtHafenEins, Berlin’s greenest office building, from the DGNB, the German Sustainable Building Council, at the Expo Real 2015. The optimum sun shading control system by Warema, which makes it easy to save energy and reduce CO2 emissions, is an important module in the sustainable building concept.