This note provides building design professionals and other green-building stakeholders with an overview of the complex interrelationships which must be managed if green buildings are to deliver improved human productivity. The note gives a brief background to the relevant issues before discussing two workplace productivity models and addressing a range of challenges facing designers in particular. Evidence of performance links between building elements important in green building design and productivity impacts from various sources are presented as a guide to the likely gains possible. Also included is advice on how to activate these links and the performance management pitfalls to look out for.