This case study is intended to show how multi-stakeholder industrial sites can form a first common framework for sustainable development. The paper presents the application of the materiality analysis approach to a multi-stakeholder industrial park in Germany. The challenge of a multi-stakeholder industrial area is to align activities of different companies within the park and to respond to the expectations of heterogenous external stakeholders. The case study will answer the following questions: 1) How do I identify the key sustainability issues from the internal perspective of the companies involved? 2) How do I find a common denominator for the different companies in the industrial park as a whole? 3) How do I derive the relevant SDG-related aspects for joint stakeholder communication? Benefits and challenges of the method are described and recommendations for the application of the concept are shared.