This bank headquarters was erected in the centre of Düsseldorf in 1964. It comprised an extensive three-storey plinth structure with a 14-floor development on top. After a comprehensive refurbishment, a further storey has now been added to the plinth structure, and the high-rise block has been increased in height by 20 m. A glazed, cubic extension was also added at the northern end, and the narrow access route through the building to the “Kö Arcade” was replaced by an ample, glazed bridge. The public banking area was redesigned with the same quality of openness. The outcome is a new building type – the banking store – with gastronomic, shopping, administrative as well as banking facilities.