Il caso dell’Unità Residenziale Est - Ex-Hotel La Serra. Il Delphi Method a supporto di scenari di intervento per “ri-Scrivere” la Città di Ivrea/The case of the Unità Residenziale Est - Ex-Hotel La Serra. The Delphi Method to support intervention scenarios to “re-Type” the City of Ivrea

The modern architectural heritage in Italy – significant in terms of size, heterogeneity and territorial distribution – often is in conditions of degradation or in state of abandon: this is partly due to negligence, but above all to the means of inadequate or totally absent public resources, aimed at ongoing maintenance activities, and to the presence of weak and unattractive markets for private investors. This heritage is identifiable in a set of “fragile” and at risk assets, for which it is essential to activate and strengthen protection processes, particularly related to an enhancement that is able to generate surplus values and trigger income streams. From the disciplinary point of view of the enhancement cycle, the possibility of reuse becomes the necessary condition for the increase of the value itself, both in its monetary meaning (in terms of capital and income value), and in the extra-monetary one, in terms of total economic value, connected to the benefits that this patrimony is able to generate. An emblematic expression of the modern movement is the Unità Residenziale Est – Ex-hotel La Serra by Iginio Cappai and Pietro Mainardis in Ivrea, a building symbol of the Radical Architecture in Italy, which in the ‘60s in Europe is in conflict with the Modern Movement. This is an element that make the building extremely interesting and counted among the Olivettian architectures built during a phase of rapid industrial development in Ivrea – nowadays considered a dormitory city in search of a new identity that can be based on initiatives to promote and enhance the territory – which started from the beginning of 20th century till the ‘70s. Currently this complex – even in its recognized uniqueness – is still not included in the area covered by the UNESCO Nomitation “Ivrea, industrial city of the 20th century”. By these premises and considering the strategic value of both the protection actions and the process of identifying and verifying the use destinations on which to base the valorization, it was decided to experiment and apply to the case study of the Unità Residenziale Est a methodological approach aimed at the prefiguration of intervention scenarios, in which the forecasting role and support to decision making is entrusted to the wellknown Delphi Method. This method, listed among the methods of analysis of the demand and forecast of scenarios of a qualitative and quantitative nature, in its classic version is based on a consultation process of a panel of experts, structured by successive steps, bthrough the use of repeated questionnaires, interspersed from feedback on the opinions expressed. In this specific case, three possible scenarios of intervention were submitted to expert, leaders in their areas of competence, using a dossier that summarizes in a clear and exhaustive way the analyses carried out, the strategic objectives to be pursued in the solutions and the methodology itself. An element of innovationand strengthening of the methodology has been the particularly attenction payed to the mapping of the stakeholders during the initial briefing phase, preliminary to the drafting of the dossier. Therefore, a preferable scenario was outlined on which assessment convergence was verified, that could constitute a strategic element in the decision-making process.