The Revitalization of the Inner city Slums involves both the Renewal of the physical fabric and the active Economic use, There is a need for both physical and economic Revitalization, One may prefigure the other, but to do this Revitalization and Development, We need some sources to finance it, and to do this, we need to activate these districts economically. In terms of the pattern of economic activities, few cities are static: The fortunes of individual areas fluctuate over time, Note how every city tends to have a Golden Era after which, for many, decline ensues, Part of the fascination of the twentieth century has been the attempts of some older cities to reinvent themselves after initially being written off following rapid deindustrialization, In many cities, to achieve a Second Golden Era and to reposition themselves within the global economy. Then to do this paper, we need to discuss the Concept and Definition of The Inner City Slums, The Concept of Economic Value, The factors influencing all urban areas, The Obsolescence Concept and some of the creative case studies to revitalize these districts economically, and so, We can Revitalize, Renew, and develop these districts.