The paper intends to develop an analysis method, studied in order to individuate the qualitative and quantitative aspects deriving by the settlement on the territory of new development that establish relations with the pre-existing tissue and influence it, changing. The variation to the state of things is determined through the study of the financial and productive flows of exchange between the project and the territory. The starting point of this analysis is the accurate evaluation of the area characteristics, where the project will be developed, in terms of environmental, historical-artistic, cultural, productive, financial and informative resources, in order to outline the peculiarity of the structures of the labour market, of the economical and social context and the technological and infrastructural potential of the area. Each destination use considered in the project (lodging, commercial spaces, offices, hotels, facilities and equipments, museum and port) is analysed separately as a part of a closed economical system, that generates financial and/or productive flows in input and output. For each type we analysed: - The area of attraction of the development; - The state of things pertinent to the real estate; - The concurrent enterprises in the area; Valuation of the possible effects during the carrying out phase and the phase of operation and quantification of the pertinent induced activity. In the end, through the SWOT analysis, the opportunities and the threats are determined, that derives from the settlement of the project in the territory, putting in evidence the strengths and weak points that emerged from the plan to the territorial system, and also evaluating before the development targets that might be reached.