Just how important the subject of sustainability has become in the property industry was very clear during a panel discussion at EXPO REAL on urban sustainability. German state secretary of transport, building and urban affairs, Engelbert Luetke Daldrup noted that as more people move to cities in Germany to live and work, making the urban environment sustainable will take a coordinated effort by both federal governments and the real estate business. We will also have look beyond energy use and look at the whole picture, including environmental, social and even cultural elements to create truly sustainable city living.