The modern post-industrial city is constantly evolving, influenced by social, economic, and cultural conditions. Urbanization and gentrification have brought significant changes, affecting housing and the social composition of cities. The increasing demand for housing due to internal and external migration, combined with tourism-driven transformations, has made access to affordable homes more difficult. Short-term rentals remove properties from the long-term housing market, driving up prices and making it harder for students, (young) workers, and low-income individuals to find accommodation.

 The lack of available housing and the rising cost of living force many residents to leave their homes. At the same time, changes in land use and available services disrupt the social fabric. Although city centers contain a significant number of vacant and underutilized properties, high prices and new commercial uses make them inaccessible to many.

 This thesis focuses on the refugee housing complexes in the Kaisariani district of Athens. The aim is to analyze and assess their role within the urban fabric and explore ways to maintain their connection to the evolving city. Without altering the existing way of life of residents, interventions in open and underutilized spaces, such as vacant rooftops and public areas, are proposed to provide additional services and facilitate the coexistence of both new and long-term inhabitants.

Keywords: affordable housing, urban regeneration, rooftop housing, restructuring of urban space, new scenarios for housing