Fattibilità economica della rigenerazione urbana: il risparmio energetico come misura per il recupero dell'esistente

Contemporary city development follows deeply different patterns compared to those of the XXth century. The trend of urban expansion has changed. Current juncture is towards urban “regeneration”, from a social, urban, economic and technological point of view. There is no unique approach towards urban regeneration: “smart” features intertwine on the basis of economic, territorial and environmental variables. The aim of this study is to identify, evaluate and test approaches and models of sustainable urban regeneration, mostly on the economic point of view. This research moves from the reasons of the present “introvert” city pattern. The outline of its social and economic reasons makes allows to relate them back to modernity, by means of variables able to influence the sustainability of regeneration processes. The rationale of present trend of urban development towards regeneration was outlined, and the variables of urban planning necessary to appraise the economic convenience of such projects were identified. A quantitative model was developed in order to analyse the feasibility of drastic regeneration processes. Terms of demolition and reconstruction are now convenient only in few cases; otherwise, it is mostly necessary to think of a re-use of the existent. Retrofit process of the existent was analysed, at a national and international level, in order to elaborate an explorative scenario for urban regeneration in Italy. Comprehensive strategies of planning, evaluation and management are necessary for Deep Energy Retrofit at a urban scale