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LocationAachen
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ProjectModernization of the RWTH Aachen University main building
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ProcedureClosed competition
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Awarding authorityBau- und Liegenschaftsbetrieb NRW Aachen
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Competition coordinatorassmann gruppe
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Architect of recordCaspar Schmitz-Morkramer
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Planning period2024
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Technical building equipmentWSP Deutschland
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Structural engineeringWerner Sobek
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Buidlind physicsPeutz
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VisualizationPaul Trakies
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.

The modernization also introduced a thoughtful spatial concept to meet the needs of students, faculty, and staff. Administrative offices are now consolidated on the ground floor, improving both accessibility and wayfinding for visitors. The cafeteria, though reduced in size, underwent a functional redesign and now occupies a versatile area beneath the assembly hall. This space supports multiple uses, including dining, work, and meetings, acting as a central hub for flexible, collaborative work environments. Additionally, barrier-free access through the cafeteria ensures inclusivity. The building’s new layout fosters interaction across the university community.

The “Monument to the future” concept establishes a new benchmark for energy-efficient refurbishments of listed buildings. Modern technologies, such as a photovoltaic system integrated into the roof and an air-to-water heat pump providing the building’s entire heat supply, eliminate reliance on fossil fuels. The combination of wall surface heating and natural ventilation ensures thermal comfort while significantly reducing energy consumption. An innovative rainwater management system captures rainwater in three large basement tanks for use in the building’s sanitation facilities. These measures exemplify how historic buildings can be future-proofed, incorporating advanced technologies without harming the environment.
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Caspar Schmitz-Morkramer
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Daniel Schöning
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Johannes Feder
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Bárbara Climent Silvar
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Jutta Göttlicher
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Baharan Mohseni Kabir
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Caspar von Werz
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Marie-Elén Wehder