As hybrid reality tools becomes more pervasive, they will increasingly challenge our ideas about space and typology. And while the de-emphasis of the physical environment in favor of a virtual one may initially seem like a cause for concern for designers, the more optimistic vision recognizes that virtual environments and digital tools create an entirely new realm by which, for which, and through which a designer may practice. Answering how that overlap between the digital and physical is manipulated and how space is defined through extended reality media offers a prime opportunity for reconsidering architecture as we know it. How is virtual content already informing our physical environment, and how can emerging tools expand the designer’s material palette? This course will particularly look at how the ability to design in, for and with virtual content informs and transforms the design process usingWebXR. WebXR is a recent development in the evolution of virtual and augmented reality technologies. It merges the ubiquity of the web with the impact of extended realities making it easier to create and share immersive and interactive environments. A multitude of WebXR applications have emerged, and they are targeted at a range of output devices from mobile devices to PC-linked headsets. In this course, we will harness our collective research capacity to explore, develop, and share the best of WebXR.