The design pursues the concept of the Foreign Office of the Federal Republic of Germany that KSV developed for the Spreeinsel competition in 1993, laying out a city square to link the new building of the Foreign Office on Werderscher Markt and the building of the former Reichsbank. The square provides road access and space for Foreign Office ceremonials; edged by slender colonnades in steel, it also opens up viewing axes to the surrounding urban area.

Gross floor area: