The Value of the House-City System as an Emerging Identity Towards “Circular Architecture”

Theeconomicpolicyimplementedintheprospectoftheecologicaltransi- tion identifies in the building sector one of the main drivers of the circular economy and sustainability in terms of climate change mitigation coming from the energy retrofit on the neighbourhood scale. This study tries to see in the tax measures supporting this process a fundamental opportunity to the historic building fabrics enhancement in view of a more general reform of the house-city-landscape system. The paper refers to the case of a neighbourhood “in transition” characterized by significant unexpressed potential, and receptive of measures aimed at its “green re- identification”. Based on a model of analysis and evaluation of a large building sample, an evaluative synthesis of the energy-environmental retrofit interventions was carried out by means of a DCFA model based on an energy/exergy analysis. Two hypotheses concerning an ordinary and extraordinary tax credit scheme were compared in terms of cost-effectiveness and financial feasibility. Critical observa- tions are proposed about the correct use of public spending and the redistributive effects of the wealth created.