Construction company PORR is expanding the use of LEAN construction methods across its operations, aiming to streamline project execution by reducing waste and improving coordination on site. The approach focuses on efficient use of time, materials, and capacity to enhance productivity and deliver projects more effectively. LEAN Construction involves the early planning and continuous adjustment of work processes in collaboration with all project participants. By analysing each phase of construction in advance, teams can better allocate resources and adapt workflows during implementation. This method promotes a coordinated working environment, where all stakeholders contribute to shared project goals. PORR is applying this strategy across its international operations, including in Austria, Germany, and Romania. The company highlights the integration of LEAN principles with digital tools, such as Building Information Modeling (BIM), as key to meeting the growing demands for quality, sustainability, and faster delivery in construction. In Germany, LEAN methods were applied during the construction of a production hall for a major automotive client. A logistics team managed material deliveries and workflows, leading to cost savings and improved onsite efficiency. In Austria, PORR collaborated with Wiener Netze, the country’s largest combined network operator, on a long-term project to upgrade the electricity grid. With support from its subsidiary, pde Integrale Planung, PORR used visual process mapping and planning tools to reduce setup time by 24% and site downtime by 17%. In Romania, LEAN techniques were used on the fourth section of the Sibiu–Pitești motorway. The Last Planner® System, along with other process management tools such as Stage Gate reviews and Swim Lane diagrams, helped teams identify issues early and find solutions collaboratively. For certain processes, such as preparing topographic reports, these changes led to a 20% time saving. PORR continues to expand the use of LEAN methodology across its portfolio, adapting its approach to meet the evolving requirements of the construction industry.