Peristeri is one of the largest and modern municipalities in the city of Athens. It has been proved that exists since antiquity but was more developed after the period of the Asia Minor Catastrophe, when a large number of refugees arrived in place. Gradually the refugees were transferred from more unsettled forms of housing to new apartment buildings designed with the principles of modernism. The refugees’ apartment buildings of Evangelistria were the last to be built in the 1970s. After insufficient development actions, the outdoor area still needs to be re-designed and upgraded, while the apartments are characterized by a lack of outdoor space. The free access of the ground floor to the public makes the entrance to the building more unsafe for the residents. The proposal of the redevelopment includes the design of new routes to connect the complex with the urban fabric in a better way but also between the inner parts of the blocks. The aim is to provide to the residents activities that will encourage the socializing and the exploitation of the area and also to invite visitors to be involved to these new activities produced in the complex. The new facilities are referred to people of all ages trying to create a relationship between the house and the private courtyard which is a basic element of the housing in Greece. The design strategy includes a new square with a public building that connects with the boulevard promoting the urban characteristics of the site and also public facilities for entertainment in the park providing mobility and viability to the everyday life. The new operating conditions in the complex contribute to the redefinition of human relationship and their interaction with the city space.