The 11th Fachdialog on sustainable building in Berlin will examine how the existing city and its buildings can be treated as resources, rather than viewed only as candidates for replacement. The event is scheduled for 5 November 2026 at the Berlin Chamber of Architects, Alte Jakobstraße 149, Berlin; participation is free, with limited places.26
The intended audience is interested professionals, with perspectives from planning, research, public administration and construction practice brought together for discussion.26 Its central questions include which qualities and materials in existing buildings should be preserved, how buildings can be adapted to future needs, and how resource-efficient, circular and natural construction materials—including timber—can contribute to sustainable renovation and reconstruction.2
The programme is set to open with a keynote on the German Advisory Council on the Environment’s report, “Zirkulär bauen: Bestand erhalten, Kreisläufe schließen.”2 Other subjects include Berlin’s circular-economy strategy, the Berlin Chamber of Architects’ “Umbauagenda,” IBA Berlin 2034–37, and practical examples of adapting and developing the existing building stock.2 The event also plans to provide opportunities for participant exchange during breaks and an interactive programme segment.2
The organisers are Berlin’s environmental administration, the Berlin Chamber of Architects and the Berlin-Brandenburg Timber Advisory Board.26 The event is the eleventh in the Fachdialog series; the available event information does not specify when the series was founded.2 Its scope is focused on sustainable building and the practical, policy and planning questions involved in retaining, reusing and adapting the city’s built fabric.25