The Housing Rehabilitation of the Asia Minor Refugees (1922–1980s) produced some of the most distinctive layered urban landscapes in the Attica basin and other Greek cities. This paper—based on literature review, archival research, and extensive fieldwork including photographic documentation and spatial mapping—examines the evolution of these settlements and the present condition of their built environment. Emphasis is placed on their architectural and urban-design qualities, which constitute a vital yet undervalued part of Greece’s tangible cultural heritage. These settlements feature a rich range of architectural morphologies: vernacular influences and Asia Minor construction traditions coexist with early examples of Modernism and Bauhaus-inspired social housing, characterized by clarity of form, human-scaled layouts, and distinctive architectural details rarely found in contemporary buildings. These characteristics form a unique, yet fragile, heritage corpus, contributing significantly to the cultural identity of the urban landscape. Despite their importance, most Asia Minor Refugee districts are not listed as monuments; only a limited number of buildings or ensembles are protected under formal protection. Consequently, they face deterioration, piecemeal alterations, and redevelopment pressures that threaten their integrity.

The findings underscore the need to integrate them into a cultural sustainability framework—one that recognizes their architectural and urban-design value and ensures that these historic layers remain active components of the evolving city.