TTrioreauTTrioreau's proposals are written in a reflection linked to the nature of the urban system. His installations move around the structure itself of the spaces built. They put into place the displacements that perturb our perception and display in a political fashion the normative character of the architecture. His work intervenes in the urban intervals; he establishes junctions in the interior/exterior relations. Taking into account the stakes linked to urbanism, and not looking at the only representation, he necessarily and principally creates "in situ" outside of the exhibition places. TTrioreau concentrates himself of the structures of the urban tissue. His interventions in the state of things in architecture are often very radical and contrary to the established ideas on the role and the meaning of the construction domain. In his system of transformations, the inside and the outside represent only relative notions, as well as the relation between the whole and detail, between real and imaginary space. There where we build, we also demolish: the city and its buildings are variables in the submission of market logic. The buildings lose their prestigious character of architectural creation to become just a good opportunity for investment of capital that, when it will not bring any more money in, is invested elsewhere, leaving these constructions to deteriorate. Only the documents and the models resist these manipulations of the market. TTrioreau's devices work on the urban zones, on their walls and their memory. Searching to include all the possibilities, he creates hybrid territories that are constituted by default or hegemony and put the body into proof by depriving the usual partitions. These are transgressed or transgressive spaces that do not offer a definitive equilibrium because the limit becomes blurred at the profit of the interference. If the changing appears always imminent, in reality it is already effective: without a real place of existence, he invests the ensemble of a territory, transforms it into a hybrid zone where the frontiers retract. TTrioreau exhibits the production of anomal structures, immanent to the field of urban normalization. The architecture is only static by way of the controlled identity that it assigns. In proposing an alternative perspective, the installation inscribes itself as a polemic process. It questions our confidence in the structural solidity of buildings, in their immobility and their permanence, to describe them as intervals, passages, transitions...