The basement building was made of reinforced concrete with brick stairs. Again, the original plan, which provided a horizontal structure of the building through the cornucopia, was abandoned in favor of a simpler façade design. In the ten-axis building, similar to the oldest skyscraper, the lower levels are grouped by pilasters. The space between the two skyscrapers (which originally had been provided with subsequent buildings) had to be closed by another building in the early 1930s. Once again, it was Jean Schmidt, who prepared the plans for a first seven-story skyscraper. The still existing façade drawings show the columns with arches on the ground floor and that are fitted between a long strip of windows with excessive pilasters. The general design shows a mixture of very graphic elements and remains of curved Modernist forms that recall the buildings by Joseph Maria Olbrich at Mathildenhöhe of Darmstadt.