In summer 2022, three temporary wooden buildings — the Huber Pavilions — had to make way for a new building on the ETH Hönggerberg campus. The CircÛbi teaching project took advantage of this opportunity: under the co-leadership of two ETH professors, civil engineer Catherine De Wolf and architect Momoyo Kaijima, students collected the construction elements (or components) of the dismantled teaching buildings in order to reuse the materials according to the principle of the circular economy. For an entire semester, around 30 students from the fields of civil engineering, architecture, mechanical engineering, computer science and materials science worked together on issues relating to the reuse of building materials. In order to master the logistical Herculean task, they inventoried the components with lasered QR codes and thus created a digitalised interface — which enabled them to create a new building from reused wooden components: the Re-Use Pavilion on the ETH Hönggerberg campus. The work of art of the circular economy has now been honoured with the Swiss Architecture Prize Arc Award in the "Next Generation" category. Text by CEA, ETH Zürich.