This paper deals with the elderly’s specific needs in the public open space as the needs can play a significant role in their social inclusion and could be especially relevant in deprived areas. The main goal is to build a model to evaluate the vulnerability of the public space by focusing on the elderly’s needs, using indicators. The model was applied to a vulnerable area in Castellón, Spain, based on indicators adapted to the specific context features. The application of the model permitted the vulnerability in the suggested dimensions to be estimated and a global integrated index of vulnerability in the area to be calculated.