Doppelhochhaus Helene-Weigel-Platz 6/7, Twin high-rise residential building in Marzahn, Berlin, Germany

The Doppelhochhaus Helene-Weigel-Platz 6/7 is a 76.35-metre-high twin high-rise of type SK 65, built as a steel skeleton with 25 storeys. Shops and service businesses occupy the ground floor and first upper floor, while flats fill the floors above.

The Doppelhochhaus Helene-Weigel-Platz 6/7 was completed in 1985 as part of Marzahn's new housing development. Architects Wolfgang Ortmann and Hartmut Pautsch designed it as a 25-storey steel-skeleton building of type SK 65. Between 1994 and 1999 the twin tower was renovated in stages, with new building services, repaired loggia walls and a ventilated facade.

The building's Plattenbau style shows how East Germany designed modern residential neighborhoods, with shops and services on the ground floor for daily needs. Visitors can still experience this mix of housing and commerce that shapes daily life in the neighborhood.

The building is easily accessible and offers shops and daily services on the lower floors. A concierge service has been on site since 2000 to assist residents and visitors with questions.

The south side of the building is covered with about 480 blue solar panels that generate power and sustainably supply electricity to the building. This green technology on the facade was a notable innovation for East Berlin when installed.