The article proposes a process of investigation on eco-living prospects in contemporary city. It highlights the role in urban fragmentation of the search for identity in the twentieth century neighborhood, whose pressures for self-sufficiency and differentiation seem to be recovered by eco-neighborhood. It outlines local energy district as a potential entity for social inclusion and urban regeneration. Energy district therefore arises as a progress in building community and as a drive for urban re-composition, according to the network of networks model. This direction of study configures a broad field of interdisciplinary research.