Hardenberg House, Commercial building and architectural monument in Charlottenburg, Germany

Hardenberg House is a seven-storey steel-frame office and commercial building by Paul Schwebes, built 1955/1956 at the corner of Hardenbergstrasse, Knesebeckstrasse and Schillerstrasse in Charlottenburg. Its continuous curtain-wall glazing alternates with floor slabs, the top floor is set back, and a suspended roof projects forward; curved corners and concave roof edges give it a sense of movement. The ground floor holds shops, the upper floors offices, and inside are curvilinear staircases.

The building was completed in 1956 during Berlin's reconstruction period after World War II. Its architecture reflects the optimism and modern design approach that shaped the city's urban spaces in the 1950s.

The building is known as Kiepert-Haus because the Kiepert bookshop had its main store here until it went bankrupt in September 2002. Since November 2003 Manufactum has rented sales space here, and in March 2016 tausendkind GmbH moved into the first floor. The name Hardenberg comes from the street it faces.

The building is centrally located on Hardenbergstrasse in the Charlottenburg-Wilmersdorf district and is easy to reach on foot. The location is close to other cultural and commercial facilities in the area.

The building's steel frame and continuous glass curtain walls, with rounded corners and a curved, concave roof edge, recall Erich Mendelsohn's 1930s commercial architecture. Inside, the staircases keep their curvilinear 1950s form. The renovation by Winkens Architekten won a special prize within the federal craft award for monument preservation.