Madlen Kobi and Peter Kneidinger from materialnomaden (Austria) held a guest lecture in the frame of the seminar "Sustainable Design. A Workshop Series" by Sascha Roesler, Lorenzo Stieger and Julian Raffetseder at theAccademia di Architettura, Università della Svizzera Italiana. This workshop addressed the urgency for a careful handling of our building stock by bringing examples for how to search for, store, design and integrate re:used materials in architecture and industrial processes. Students were choosing a building on or around the campus to assess its materiality and identify reuse components based on criteria such as material quality, deconstruction and reuse potential.