After completion, the twin towers featuring 34 stories and 36 stories respectively will be renamed as the Green Towers. The towers are situated on a late 19th century Lowensteinsche Palace site and were constructed in the year 1983. The palace underwent a major damage during the Second World War and is vacant since then.
The renovation of the 1.29 million square feet Deutsche Bank headquarters is being undertaken by Milan-based Mario Bellini Architects with gmp von Gerkan, Marg, and Partners, who are a part of the project’s planning and management team.
The retrofit is not expected to bring any change in the outside appearance of the iconic building as its exterior has become a representative of the bank and its unofficial logo. The architects have replaced the building’s old and inefficient curtain wall with a new triple-glazed system. The system resembles the look of the original glazed façade but offers the luxury of operable windows.
The all-concrete towers are aiming at the LEED Platinum and Gold rating, which is the highest rating from the German Sustainable Building Council.
Some of the sustainable elements of the towers design include recycling of 98% of construction materials, which includes 30,500 tons of demolition materials; and achieving reductions in energy usage inside the building by 55%; water consumption by 74%; heat energy usage by 67%; and CO2 emissions by 89%. The new design also aims at reworking on the interiors to increase the efficiency to an extent that it may occupy the same floor space that 600 additional workers occupied, once it reopens in late 2010.
