This Paper aims at illustrating the methodology applied for the individuation of key factors able to determine the urban development of a Metrolitan Area in an accession country. After the indentification of the metropolitan area, the first step is to point out the current situation depending on one side on macro economical situation that comprises demographic, revenue, expenditure, inflation, employment, and business, and on the other one on infrastructures and properties development. Based on this significant data the analysis will be implemented with information related to financial funds already approved by Local authorities and financially supported by EU institutions. The role of some local operators in the metropolitan market will be studied with the aim of pointing out the future development guidelines. The analysis will also concern the real estate and economic evolution of some metropolitan areas belonging to other countries which joined the EU in May 2004. Finally, the most reasonable developing scenario of the metropolitan area under analysis will be illustrated together with the most active zones in terms of new investments and the predictable macro economic effects.