Vienna’s concept for the productive city emphasises the value of the manufacturing sector and secures it as a key pillar of sustainable urban development. Embedded in this progressive framework the E15 site builds a mosaic within the larger zone of an ambitious transformation for a mixed-use-area of production and housing. A rather small plot of land, excellently accessible, it shall function as the ultimate experiment for mixing. Different interests need to be orchestrated and resilient synergies found. The site’s position within a traffic hub, its undulating topography, small size and wild nature will pose an extremely exciting and challenging task. The parameters for a mixed industrial site are set here. Amaze and inspire with a visionary pilot scheme for many to imitate.