Purpose: This paper aims to define the influence of the physical and social dimensions of the work environment on knowledge productivity of academics in Dutch Universities of Applied Sciences.Design/methodology/approach: Literature review; a multiple case study based on literature review (6 cases); a survey (n=188).Findings: Knowledge workers share two basic needs: their productivity requires isolation (internalization of knowledge) and interaction (externalization of knowledge), supported by different spatial concepts. None of the work environments involved in the study adequately support all of the phases in the knowledge development process adequately. Collective productivity is primarily determined by the physical dimension of the workplace; whereas the social dimension is crucial for personal productivity. Social interaction has a stronger effect than distraction; and the layout has a stronger effect than comfort.Conclusions - A high performance workplace supports both externalization and internalization of knowledge, allowing group members to collaborate and communicate according to need. More traditional work environments support internalization; innovative workplace designs (the office as meeting place) are more suited to support interaction and collaboration. Discover why freedom of choice is the key.Recommendations - Academics should be allowed to choose as to how, where and when they work and involved during the development of new concepts.Paper type: Research paper