The strategies of urban and architectural renewals have been hit hard since the outbreak of the economic crisis. The dissolution of the “driver” market functions, through which these interventions were realized, requires today a more in-depth economic analysis re- lating to the feasibility of building. The paper shows research carried out on “Villa dell’Ambrogiana” in Montelupo Fiorentino (Florence) through which the methods of discounted cash flow analysis (DCFA) were applied during the editing of the recovery project. The aim is to examine in depth the use of economic evaluation as a tool in architectural design.