This doctoral thesis is the culmination of work conducted in the context of an interdisciplinary research project that has been practice-based yet theory-driven and contributes to the fields of fine art and architecture with a particular focus on critical theory. It seeks to map a shared theoretical vocabulary regarding the creation of space and to frame the language of an emergent art practice that is fundamentally architecturalised and constitutes lived experiences as temporal events within actual architectural settings: loci. In this context, the thesis sets out an ontological and topological perspective regarding the occurrence and operation of immersive experiences and sees the latter as more-than-visual localised events in a state of becoming rather than mere phenomena. The investigation expands the concept of immersion beyond a digitally constructed reality and sees the virtual as a complementary element of the actual for the formation of receptive atmospheres. The thesis attempts to establish a modality of an immersive spatial experience that is sensory, multiple as well as intimate in empirical terms, with reference to the philosophy of the event and particularly the complex spatial theories of Gilles Deleuze. The thesis creates a theoretical index outlining the already established and mutual exchange of methods between inherent architectural and artistic research processes. The practice element, defined as a self-reflective case study, explores how the artistic creation of space can become embedded within everyday practices, yet disrupts the habitual at the same time preserving a sense of place. The work supports the elaboration of theoretical ideas contributing organically to the invention of new terminologies. The latter are drawn from critical inquisitions and are either radical or based on the recalibration of existing concepts such as diaphragm, atmosphere and threshold. The contribution to knowledge concentrates in the establishment of chorotopical art as the architecturalised art practice that encompasses place and space and genomenology as the philosophical theory that complements phenomenology to frame the occurrence of lived events. The thesis concludes with a critical analysis of the practical element, the mapping of implications and methodological limitations emerged, as well as extensions and suggestions for further development at post-doctoral level.