certificates to Hermann-Josef Lamberti who, as Chief Operating Officer, was the Deutsche Bank Management Board member responsible for the renovation. Petra Roth, Mayor of the City of Frankfurt am Main, emphasized in her welcoming remarks the importance of green and sustainable buildings in urban development. “We are delighted that the modernization of the Deutsche Bank towers has attracted interest worldwide. Frankfurt deserves its reputation as a 'green city' in many ways. This is a goal that we have been working towards for many years, and one that we have further highlighted by applying for the 2014 European Green Capital Award.” Ownership In 2007, Deutsche Bank purchased the complex for approximately €271 million from a closed-end fund which owned it since 1984. Estimates say work on the building cost the bank €200 million. In March 2011, the bank announced it would sell the towers to DWS Investments, another closed-end real estate fund owned by the bank's asset-management division for €600 million. Gallery In popular culture In the second season of Supergirl the twin towers were used as the Department of Extranormal Operations (D.E.O.) Trivia The opposing towers are sometimes jokingly referred to as "Soll und Haben" – "credit and debit". Skyscrapers in Frankfurt See also List of tallest buildings in Frankfurt List of tallest buildings in Germany List of tallest buildings in the European Union List of tallest buildings in Europe References External links Deutsche Bank The Twin Towers will be renovated New Deutsche Bank Towers Bank headquarters Office buildings completed in 1984 Skyscrapers in Frankfurt Twin towers Bankenviertel Skyscraper office buildings in Germany Deutsche Bank