The document discusses a project called CAP4CITY that aims to build capacity for smart sustainable cities using IoT. It does this by integrating concepts of smart sustainable cities into university courses across multiple disciplines. The project will develop training modules and an open online course on smart sustainable cities. It also discusses preliminary results from the project including an analysis of the key dimensions of smartness and sustainability as they relate to cities. Competencies needed for smart sustainable cities are categorized as individual, collective, intra-organizational, and inter-organizational.