%T How public can the private be? Private actors involved in public space production. Case Study: Mercedes Platz, Berlin Germany %A David Schulze-Seeger %L theses_frw4365 %D 2023 %X This paper investigates the involvement of private actors in the production of public spaces and their impact on publicness. Employing a mixed-methods approach, including stakeholder interviews, user surveys, and an analysis of planning documents, the study focuses on the single case of Mercedes Platz (MP) in Berlin. The main research question will be assessed along a firm and concise conceptual model, assessing the publicness of the MP regarding aspects of the process, and the product (the space itself). The findings demonstrate the predominant role of private actors in the process, driven by commercial interests, while citizen participation remains limited. Even though the acceptance of the product was perceived as rather equal, usages focusing primarily on financial returns, discrepancies in design preferences, and a lack of vibrant public character are evident. The case study demonstrates that private actors have a negative impact on publicness. Therefore, this scholarly paper emphasises the necessity for improved harmonization between public and private entities to foster the creation of dynamic and vibrant public spaces. Future research could then undertake more nuanced case studies to establish comprehensive guidelines and fundamental principles to achieve this objective.