Sustainable buildings have typically been measured by their reduction in resource consumption and their achievement of green building certifications. However, neither of these criteria measure the most important aspect of the building – the impact on occupant comfort, health, well-being, and productivity. What makes people more comfortable and productive?  The presentation will help the audience understand the factors that influence the occupant experience and the key elements that impact comfort.  Design strategies to improve indoor environmental quality (acoustic, indoor air, thermal and visual comfort) will be described in detail.  The process to define desired outcomes that present problems to solve which lead to system solutions will be discussed for each comfort theme.  In addition, methods to measure, calculate, analyze, visualize and communicate performance will be described in detail.