The Vacant Urban Space: Problems, Possibilities, Processes

Cities are dynamic entities in perpetual evolution. Through this process, vacant spaces tend to appear under different circumstances. Certainly, empty and abandoned lots in a dense urban fabric are easily locatable. That their state persists over a considerable period is what makes them remarkable. This phenomenon may be viewed from different perspectives by urban planners, architects, geographers, economists, environmentalists, sociology academics and policymakers. Therefore, multiple data, parameters and definitions are in play. This multidisciplinary combination could quickly create a terminology issue in the scientific body related to urbanism and open space design. This paper presents an overview of the definitions of urban vacant spaces, taking into consideration the various perspectives. While following the timeline and the changes in the interpretations of the vacant urban space, it becomes evident how this phenomenon came from a problem of failed urban design to a possible place of resistance and finally an accepted possibility for temporary urbanism.