Due to globalization, demand per capita has increased over the decade; in turn, standard of living has been increased. The emission of carbon dioxide is increasing exponentially in construction industries, which affects the global ecological system. To reduce the global warming potential, net zero energy buildings are very essential. With respect to technological advancements in information technology, the internet of things (IoT) plays a vital part in net zero energy buildings. In this chapter, the various issues and challenges of high-performance zero energy buildings are elaborated using different scenarios.