架构师提供的文本描述。KfW Westarkade是世界上最早的一次能源可达100千瓦时/平方米的高层办公建筑之一。KfW银行集团总部的这一15层延伸部分位于城市的西端，毗邻帕门加滕中央公园，建成了70年代、80年代和90年代的现有建筑群，并拥有会议设施和大约700人的办公空间。

Text description provided by the architects. The KfW Westarkade is one of the first high-rise office buildings worldwide that can be run on less than 100 kWh/m2 of primary energy per year. Situated in the city’s West End adjacent to the central Palmengarten park, this 15-storey extension to the KfW Banking Group’s headquarters completes an existing ensemble of buildings from the 70s, 80s and 90s, and contains conference facilities as well as office space for some 700 people.

 © Jan Bitter

(扬·斯泰特)

这座56米高的大楼的体积已并入现有的一组塔内，使这些建筑物的天际线在齐柏林通道仍然清晰可见，并相应地保持了这些办公室的视野。同时，新的高楼大厦充当了两个不同的城市空间之间的交汇点：当它出现在街道上的一个薄薄的平板上时，它为棕榈树的景观提供了一个谨慎的背景。建筑物插座的流动形式定义了街道的边缘，占据了邻近的北拱门建筑的檐高。立面位于地面，在街道上建立一个保护拱廊，而Palmengarten的景观则被无缝地拉到场地的后面，以创造一个宽敞的开放空间。

The volume of the 56 metre high building has been integrated within the cluster of existing towers in such a way that the skyline of these buildings remains visible from Zeppelinallee while, correspondingly, views out from these offices are maintained. At the same time the new high-rise acts as an interface between two distinct urban spaces: while appearing as a slim slab towards the street, it presents a discreet backdrop to the landscape of the Palmengarten. The flowing form of the building’s socle defines the edge of the street, taking up the eaves height of the neighbouring North Arcade building. The façade is set back at ground level to create a protective arcade to the street, while the landscape of the Palmengarten is drawn seamlessly into the rear of the site to create a generous open space.

 © Jan Bitter

(扬·斯泰特)

这座新建筑在物质性和色彩两方面都扩展和补充了现有的整体。双层风压立面具有很高的绝缘价值，提供自然通风，不受天气影响，以及有效的太阳能保护。辐射地板和地热采暖有助于进一步降低能源消耗。

 The new building extends and complements the existing ensemble in both materiality and colour. The double-layered wind-pressurised façade has high insulation values, offering natural ventilation independent of the weather as well as efficient solar protection. Radiant floor-slabs and geothermal heating help to further reduce energy consumption.

 © Sauerbruch Hutton

(Sauerbruch Hutton)

KfW Westarkade被芝加哥高层建筑和城市人居理事会授予“2011年世界最佳高层建筑奖”。

The KfW Westarkade was awarded “Best Tall Building in the World 2011” by the Council of Tall Buildings and Urban Habitat, Chicago (CTBUH)