In the past three decades, Berlin has become one of Europe’s most representative multicultural capitals, with migration significantly reshaping the city’s public spaces. This study focuses on the Neukölln neighbourhood and examines how Muslim communities, primarily of Turkish, Syrian, Lebanese, Palestinian, and other Arabic-speaking backgrounds, have contributed to redefining its urban landscape through their religious, cultural, and social practices. Although the arrival of Turkish workers in the 1960s laid the foundations for demographic change, this research emphasises developments over the past thirty years, including the impact of the Syrian refugee crisis that occurred in 2015. The study analyses the evolving spatial dynamics of three key streets: Sonnenallee, Karl-Marx-Strasse, and Hermannstrasse, employing visual and ethnographic methods, with a focus on cognitive mapping. These streets are conceived as thresholds of interaction, where diverse communities negotiate their identities, spaces, and sense of belonging. Through mapping exercises conducted with long-term residents and regular users, the research documents lived experiences, spatial perceptions, and the formation of community boundaries and clusters. Supported by field observations, interviews, and historical analysis, the research explores how migrant communities actively transform public space, creating a mosaic of intercultural expressions. It also reflects how diversity might produce more inclusive and representative urban environments, enriching both the symbolic and experiential meanings of architecture and space.