Green buildings are becoming increasingly important in the five major German office markets Berlin, Düsseldorf, Frankfurt, Hamburg and Munich, according to international real estate advisor Savills. Throughout the first half of 2010 leases totalling approximately 144,000 m[sup]2[/sup] were concluded on green buildings in the five cities, equating to a share of 14% of the total letting volume transacted. By comparison, the full-year for 2009 came to 162,000 m2, representinging 8% of total take-up.