The work presented on the website (https://datasmartbuildings.org/) aims to gather and report on the technical details, business cases, and stakeholder stories associated with examples where data-driven solutions have been implemented in the real world. Each case study focuses on a particular building, technology, or dataset. Individually, the case study descriptions aspire to highlight a specific facet of applying data-driven smart building technologies. Collectively, the case studies help garner an understanding of the current state of practice and possibly help identify a path forward to critically understanding some of the benefits and challenges associated with data-driven smart buildings.