The Palais Schaumburg was still used, but primarily for purposes of representation, and the "Old Chancellery" was taken over by the Auswärtiges Amt[2] The park, with a central driveway from Görresstraße, surrounds a third building, the Kanzlerbungalow, which served as the official residence of the Federal Chancellor.

The department building is built on a ground raster, which produces almost 100 square meters of supporting surfaces in the interior, and is entered by the main entrance on the Rhine side (in the east).

The free steel skeleton construction (with only six concrete cores as fixed points) allows the adaptation to all organizational requirements by means of variable walls.

The low - rise development (below the crowns of the park and the first of the Palais Schaumburg) - with a new volume of more than 200,000 cubic meters, 30,000 m2 of floor space and 13,000 m2 of façade - justified the decision of the Jury for price and execution.

But the "urban redevelopment", certain purism aesthetic qualities demanded in the competition tender of the Federal Building Administration and also the functional analysis of the internal structure (fully flexible ground plans) highlighted.