Energy redevelopment of historical centres in the pursuance of the cost-effectiveness principle

In historical centres the search for architectural and plant design solutions for the achievement of higher energy and environmental performances of buildings has to reconcile the preservation of the peculiarities of the building stock on the one hand and the economic efficiency of the interventions on the other one. The cost-effectiveness principle, which is adopted by European policies for the improvement of energy performances of the building stock, may be satisfied through the use of specific macro and micro-economic valuation models.