Starting from the identification of the inescapable vectors for the ecological transition, the dissertation is developed around the so-called ecological paradigm, an already fully consolidated global view in which three epistemological fields converge: the ecological science, the emancipatory political theories and practices and the philosophical inquiries around human consciousness. As a framework of reference and plot thread, the epistemological perspective developed by Félix Guattari in his work The three ecologies (1989) has been used, based on what he defines as the three basic ecological dimensions: environmental, social and mental. This framework is especially suitable to address the multidimensional character of the new paradigm in relation to the urban-territorial reality, considered as a mental and social phenomenon in permanent interrelation with its environment, and as an spatial artifact product of the metabolic flows of energy, materials and information generated within a certain model of appropriation-transformation-distribution and consumption. The proposal of an autopoietic utopia, that is, a utopia in permanent self-creation, inseparable from the construction of a model of deliberative democracy and a model of open planning, really constitutes the core of the proposal. As a development of this proposal, a series of objectives and tools for a new urbanism inspired by the ecological paradigm is formulated. Key words: Ecological Urbanism, Utopia, Ecosophy, Autopoiesis, Urban Metabolism, Open Planning.