FabriCity XR explores the role of sociopolitical norms in shaping and controlling urban thresholds within the contexts of metropolitan cities like Houston and Amsterdam. The study theorizes that the politics governing liminal urban spaces intend to suggest alternative methods for co-designing and co-producing urban thresholds to question the deep-seated dichotomies between public and private urban spaces. A keen focus is placed on the concepts of liminality, urban thresholds, and the dichotomy of inside–outside perceptions as the research aims to explore the stark contrasts between both tectonics of the public and private spheres. The overall approach considers new tectonics and modalities in the production of urban spaces and the subsequent impact on urban populations. Moreover, it addresses marginalized communities and immigrant peoples within the urban context, seeking to highlight how power structures covertly homogenize social dynamics within the urban sphere. The installation blends three interrelated research and interdisciplinary explorations: Design Computation and Fabrication, Urban Communities, and Spatial Justice. Through the integration of Extended Reality and Gamification, an immersive viewing experience is created.