AugmentCity decreases the gap between man and machine by humanizing and contextualizing complex data. AugmentCity offers smart and sustainable solutions throughout the urban development process involving inhabitants, politicians, private- and public decision-makers. The cloud-based platform enables cities to benchmark on sustainability key performance indicators and their stakeholders to collaborate on urban or territorial development through visualization by importing digital elevation and BIM models and integrating different data APIs for rich and immersive modelling of future scenarios: One platform – multiple datasets - cross-disciplinary collaboration for a smarter and more sustainable future. Recent reality augmenting projects include the visualization of decarbonization infrastructure projects, the instant simulation of mobility, improving energy efficiency in office buildings, live-editing terrain and buildings, simulating sea-level rise in coastal cities.