Whereas VitruviusFirmitas -understood as a focus on organization that is fundamentally static- is almost universally considered to be a key strategy of architectural design, this paper attempts to outline an alternative conceptual framework in which the passing of time constitutes an addi- tional parameter of spatial configuration. This approach is based on the notions of field, event and alloy, and points towards a range of design outcomes characterized by being in a permanent state of transformation. As a case study of this understanding of the design process, this paper puts forward an analysis of the Kanagawa Institute of Technology Workshop designed by Junya