Our approach to the energy-efficient refurbishment of the main building at RWTH Aachen University balances sustainability with monument protection. We retained the building’s historic character while upgrading its energy performance to levels typically associated with new constructions. A highlight of the renovation is the roofing over the inner courtyards, which functions as a thermal buffer, eliminating the need for external facade insulation in these areas. This solution preserves the architectural integrity of the historic structure while also creating valuable new spaces. Our streamlined technical concept minimizes maintenance and energy costs, while the use of sustainable materials, such as earthen plaster and wood fiber insulation, ensures an environmentally friendly and non-toxic outcome.

Congratulations to KRP Architektur GmbH for the 1st prize, HPP for the 2nd prize and RKW Architektur + for the 3rd prize!

Design: caspar., WSP, Werner Sobek, Peutz Consult
Awarding authority: Bau- und Liegenschaftsbetrieb NRW
Visualization: © Paul Trakies