When it selected COOP HIMMELB(L)AU to design the ECB’s new premises on 13 January 2005, the Governing Council also decided to conduct an optimisation phase. In cooperation with the ECB, the architects reviewed their design, taking into account the revised functional and spatial requirements, in order to ensure an optimal use of resources and to reduce costs. In parallel, the ECB worked closely with the Frankfurt authorities to integrate the Grossmarkthalle site into the city’s infrastructure.
On 15 December 2005 the Governing Council approved COOP HIMMELB(L)AU’s optimised design concept for the ECB’s new premises. The new concept fully met the requirements of the ECB.
The optimisation phase led to several changes in the design proposal: