“…Further developments have led to the use of RS as a tool to treat incomplete or imprecise information systems (Kryszkiewicz, 1998;Greco et al, 1999;Dembczyński et al, 2009), and also as a multicriteria decision support tool (Pawlak, 1997;Greco et al, 2000Greco et al, , 2001Greco et al, , 2002Abastante et al, 2013Abastante et al, , 2014. RS analyses have already been carried out to investigate the feasibility drivers of urban renewal transactions, particularly those implemented through PPPs (Nijkamp et al, 2002;Stanghellini and Copiello, 2011). Recently, applications concerning building energy efficiency (Yang et al, 2013;Kiluk, 2014) and somehow related fields (Zhang et al, 2009;dos Santos et al, 2011) have started to be developed.…”