BREEAM, LEED, WELL and also circular construction are one of the many sustainability initiatives that are playing an increasingly important role in the built environment. However, it is often not specified exactly which options are available or beneficial per location and which financial costs and even social consequences are involved. This creates uncertainty, so that sustainability initiatives are waived. Together with Schiphol Area Development Company, Metabolic and Ecorys, APTO has assessed how we can create transparency at work locations and how we can make sustainability goals measurable, so that initiatives can be implemented.