In Situ it is a Site Specific Laboratory in Architecture. Every year the Autónoma University, in Lisbon, organises an workshop with their students, and few more people, and challenge them to work in a real and immediate intervention in several territories. In September 2019, the interevention space was Minde, with the objective of building a Pavilion, that could bring people together, promote gathering or even a performance within the scope of the Festival Materiais Diversos.The project was developed by several students and architects, designers and sculptors, under the tutorship of the studio JQTS and Mathias Ballestrem. The construction system was decided by them, as well as the material. In addition, it was up to the groups of participants to develop a proposal, design the structure, its modes of fitting in, prepare an assembly line to construct on the site. In the end , there was performance realized by the Fine Arts students.