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Works for urban renewal and building maintenance are increasing the percentage shared in the broad construction sector in European economy.
Interventions are designed by architects, engineers and applied economists using CAD, spreadsheet, DB, and regression tools. These databases are disparate and fragmented. They can be tied together and integrated with the powerful ArcGIS framework that can be the basic element for a Decision Support System (DSS) giving more coordinated cost-benefit indicators to entrepreneurs, city managers, analysts, designers, engineers and the general public. The paper will describe the construction of a DSS prototype, discuss the general design of a dedicated ArcGIS (integrating CAD, spreadsheets, DB, regression models) for urban enhancement design/evaluation, and focus on the urban renewal cost forecast. A Case Study is developed using ArcView 8.1, MS Access, MS Excel, Autodesk AutoCAD, SPSS, and software for Multi Criteria Analysis, applied to accurate design and cost forecast regarding an urban renewal intervention.