This presentation highlights the results of an effort to evaluate energy and Indoor Environmental Quality (IEQ) performance of a net zero energy building from occupants’ perspectives during its first year of operation. The assessment was performed based on the ASHRAE Performance Measurement Protocols (PMP) for Commercial Buildings. This includes an occupant IEQ satisfaction survey along with continuous measurements of selected energy and IEQ variables with occupancy. Lessons learned from the assessment are presented, including evidence that a net zero energy building can deliver high standards of comfort to their occupants.