Industriehof

Jacob Koerfer acquired the plot at the corner of Krebsgasse and Glockengasse in 1921 to build a modern office building, handed over for use on 25 May 1923. In the 1930s, ownership passed from the Grundstücks-Aktiengesellschaft Colonia to the D.A.F., the Nazi labor front under Robert Ley. Because of this ownership history, the Allied military government later seized the property and placed it under trusteeship, with the state of North Rhine-Westphalia eventually assuming legal succession.

At completion, the facade spanned twelve bays along Krebsgasse and six along Glockengasse. Koerfer united the ground and first floors with pilaster-like wall piers into a unified base—a motif previously used by Paul Bonatz on the Reifenberg building at Neumarkt. The top two office floors were set back in terraces, each with a walkway along the recess. At the corner facing Glockengasse, an over-life-size male figure stood at first-floor level.

During World War II, the section bordering Glockengasse—including three of the twelve Krebsgasse bays—suffered heavy damage. This destroyed portion was demolished and only rebuilt in 1958 under the state building authority, without reference to Koerfer's original design. The surviving nine bays today are capped with a flat roof rather than the original hipped roof.

The 1930 address directory listed 28 primary and 17 subtenants, including several architecture firms and the Consulate of the Republic of China for western and northern Germany. For decades, the gun and hunting supplies dealer "Eduard Kettner" operated here. In the 1960s, the Cologne district government housed its reparations department in the building. Today's main tenants include the Rhein-Sieg transport authority (VRS).