The new residential and commercial building of the Karlsruhe Life Insurance Company was erected at a key location in the former "Zähringer Vorstadt" (Zähringer Suburb), planned by Christoph Arnold, a student of Weinbrenner, in the area of the Zähringer Gate, which had already been demolished in 1880. In remembrance of this gate, the large new residential and commercial building was named "Zähringer Tor" (Zähringer Gate). Until its destruction in 1944, the site was occupied by the so-called "Rondelihaus," a two-storey corner building between what are now Bernhardstrasse and Habsburgerstrasse, which had an identical counterpart on the opposite side. These two buildings, as essential components of Arnold's urban expansion plan and closely modeled on Weinbrenner's buildings in Karlsruhe, also marked the entrance to the city at that time. The design of this new building had to address the demands of this prominent urban location.
