The Viennese architecture firm won an architectural competition for this prestigious order back in February 2004. Serious work on the project began a year later, in January 2005. The goal of the revisions was to keep the construction budget within 500 million euros.
The main change in the formal design of the tower is the disappearance of the volume of the "horizontal skyscraper", which blocked the view of the protected monument - the Grossmarkthalle market (built in 1928) - from the Main.
Instead, a body will appear that will "pierce" the market overlaps diagonally. Such a building was part of the first competition project of "Coop Himmelb (l) ay", to be later replaced by a "horizontal skyscraper".
Also, the towers of the ensemble will be two floors lower: 177 instead of 184 meters.
All these changes required a rearrangement of the functions of the various premises of the bank; thus, the main entrance has now been moved to the north-western corner of the market, the conference hall and the dining room will instead of the "horizontal skyscraper" be located inside the architectural monument itself, where it was previously supposed to place the visitor center and the library.
The already approved project will begin at the end of 2007, and the building is scheduled to open in 2011.