Set to become one of the world’s most innovative sustainable developments, Milan’s new, iconic ENI headquarters features three interconnected office buildings, a landmark skybridge, and 11,684 square meters of total green surface area. Webuild was contracted to deliver the project over a short timeline amid a limited footprint. However, the critical node of the entire construction plan was the large steel sky bridge, presenting a complex assembly. To keep the project on schedule and ensure safe, streamlined workflows, Webuild needed a collaborative digital construction simulation solution. Webuild selected SYNCHRO to establish a dynamic, virtual construction environment and a digital twin to evaluate multiple scenarios, perform clash detection, and determine a construction solution that optimized planning and safety while minimizing social and environmental impact. Bentley’s 4D construction technology reduced rework by 90% and the construction schedule from 85 days to just four days. Working in a connected digital platform optimized site layout, decreasing the carbon footprint of the project by 30%, and provided insight into all phases of construction, achieving zero on-site accidents.