What makes the relationship between the Agenda of Trieste Municipality and USEAct so interesting is the deep coherence of objectives. In the case of Trieste, USEAct is just one of the on-going actions in the frame of a more general vision for a sustainable city. A city that renovates itself limiting the impacts on the environmental system, through processes of re-centralization instead of expansion and suburbanization. In this sense, we are working on many policies aimed to promote a closer synergy between urban renewal and energy retrofit of existing buildings: from the Sustainable Energy Action Plan (SEAP), to the General Town Plan (GTP).