It is well known that significant performance gaps exist between the building design stage and building operation. To ensure buildings achieve predicted performance in terms of resource use and occupant comfort, health and wellbeing, post-occupancy performance assessment is required. This course begins by introducing students to common building performance issues, the existing frameworks and rating systems designed to characterize these issues as well as the three performance gap types: prediction, expectation and outcomes. Next, the relationship between occupants, the building envelope and mechanical systems is explored, including the influence of each of these elements on indoor environmental quality and resource use. Through development of a hypothetical field study, students will gain experience with the metrics, measurement methods and data analysis techniques used in the holistic assessment of building performance.