Kommandantenstraße 9–12A, Heritage monument in Steglitz-Zehlendorf, Germany.

Kommandantenstrasse 9-12A is a residential complex with red brick architecture in Berlin's Steglitz-Zehlendorf district. The original building holds 48 apartments while two companion structures built in 1997 add 38 more units to serve current residents.

The Prussian minister Christian Rother founded the Rother-Stiftung in 1840 to house unmarried daughters of officers and civil servants. After selling its site near Hallesches Tor in the mid-1890s, the foundation bought a three-hectare plot in Groß-Lichterfelde, where architect Alfred Kärner built the present complex from 1896 to 1898, inaugurated on 5 October 1898 for about 40 residents. Postwar inflation forced the sale of parts of the grounds, and in 2007 the property passed to the Beamten-Wohnungs-Verein.

The three-wing structure shows typical institutional design from the late 1800s, with its main entrance positioned at a street corner. Red brick walls decorated with friezes and arches remain a defining feature of this Berlin neighborhood intersection.

The building sits at the corner of Friedrichstrasse and Kommandantenstrasse and is easily visible from the sidewalk. Visitors can view the architecture from the street and observe the characteristic red brick facade with its decorative details.

A Stolperstein was laid in front of the property on 26 April 2014 for Betti Kierski. Admitted to the foundation on 8 February 1934, she was forced to leave on 20 December 1938 under the Nazis' racial policy, yet kept receiving her pension until her suicide on 26 September 1942.