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Human spatial experience has recently expanded due to the development of location-aware technology. Locative information has become more significant within urban space; as such, related discourses have attempted to focus on the issue as a way in which we acquire locative information when we experience space. Digital location-aware methods enable the demonstration of live densities of telecommunication through which one can infer temporal and spatial factors of live urban situations. When locative telecommunication data is mapped onto urban space, temporal-spatial demographic maps are obtained. Based on these maps, one can infer the correlation between spatial experience and architectural programmes via on site observation and by determining the multi-layered structure of spatial experience via designed data installation. These considerations aim to investigate locative interaction in urban space in order to expand spatial experience. This research begins with two linked theoretical notions: rhythm analysis and heterotopia—in other words, temporality as it relates to our everyday life and spatiality as it relates to our search for ideal space. In addition to these positions, the following discourses are specifically developed to investigate locative interaction in urban space. Firstly, the temporal and spatial patterns of urban activities are investigated in an attempt to grasp current urban interactions. The telecommunication data is then mapped geographically. Secondly, the gap between the endowed architectural programmes and the observed activities in urban space is explored in order to examine the multi-layered structure of urban interaction. Thirdly, the above discussions are synthesised using a design project that interprets epistemic aspects of this initiative. Lastly, urban rhythms and locative virtual layers are suggested as the concept for locative interaction in urban space where architectural programmes become more flexible, thus expanding spatial experience. Two projects demonstrate as applicable scenarios of locative interaction in urban space; they involve a heterotopia finder and a floating gallery over London. This research suggests a new viewpoint from which to consider our world and its digital presence by mapping a ‘live urban space’ using telecommunication data—an initiative that highlights the importance of people as a crucial aspect of our digital surroundings. This research ultimately contributes to expanding urban spatial experience and providing an informative and holistic mapping structure for architecture and urban design, interweaving it with the digital environment.