The current economic and financial market  conditions have forced Public Administration to examine more closely their  balance sheets, identifying the main cost items. And the cost of the lease  accounts for a significant part of the public finance, as shown by Cottarelli,  Agenzia del Demanio data or by UK data.    
In order to  contain public expenditure, some governments are exploring more compact and  dynamic organizational structures, leading to use property space more  efficiently. In this context, the  rational use of space is a highly topical issue.
Many local authorities are gearing up to transform their civic and  administrative portfolios to match the challenges of modern service delivery,  including the impact of new technology and opportunities to engage with the  private sector \citep*{booka} . According to scientific  literature, the main objective of managing public real estate property is to improve  the use of public real estate during the process of performing public tasks,  i.e. meeting collective needs of the community by providing local public goods \citep{articlec}.
Nevertheless,  over the past 40 years and several strategies have been applied to efficiently manage property assets, findings have shown  different problems and matters, such as: the inadequacy of management  processes, the lack of a mid/long-term strategic vision and poor knowledge of  the existing portfolio \citep{articled}.
According  to \citet{articlee} and \citet{articlef} , these difficulties, unlike the CREM (Corporate  Real Estate Management) sector, arise from combination of managerial and  political sphere. PREM (Public Real Estate Management) combines principles of  public interest (intergenerational equity, social sustainability, effectiveness,  accountability, etc.), key principles of real estate management (public-private  partnership, leasing, etc.) and other operational aspects (evaluation,  performance evaluation, inventory, property maintenance, etc.) \citep{articleg} . The need to combine typical methods of the  corporate real estate management with the social values such as fairness and  responsibility, highlighting the contrast between private sector and public  sector.