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Secondary school building, Oberentfelden

Entfelden school needs more space to ensure education for future generations. As part of the masterplan for the expansion of school space, the existing secondary school building is being extended and renovated with a two-storey extension. By using a hybrid supporting structure made of steel with timber-concrete composite ceilings instead of a conventional steel girder structure with sheet metal composite ceilings, a large number of added values can be generated within a cost-efficient solution - such as the careful use of sustainable material resources, an optimised construction process through prefabrication and, last but not least, improved architectural fine-tuning.


as zwöi GmbH and Halter AG, Global Services


Kreisschule Entfelden


Halter AG, Global Services


Gross floor area approx. 11,100 m², building volume 23,000 m³

Construction volume

CHF 18,9 million

Completion date

June 2025



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