The subject of this thesis is a smart city as an infrastructural solution of the city of Zagreb. The basic goal of the paper is, based on the analysis of the current situation and examples from practice, to offer smart solutions for the city of Zagreb. The goal is also a theoretically systematized knowledge about the concept of a smart city based on technological innovations, and the analysis of selected examples from practice and the current situation and current smart solutions of the city of Zagreb. The expected contributions of the work stem from the fact that the concept of a smart city is still poorly known, as well as the real possibilities that smart solutions can offer to the city of Zagreb in terms of infrastructure. The primary data sources in this research are available statistics, publications and strategies which analysis leads to the objectives of the research. Based on research and detailed analyzes, the smart solution proposed to the City of Zagreb is a centralized portal that combines the achievements so far and continues to develop. A prerequisite is certainly a holistic approach and the concept of open data where the data would be available to stakeholders, the city government, public and private companies, universities and researchers, as well as all citizens. A holistic approach and integration should become an integral part of the development of smart Zagreb. This approach enables the growth of the economy, solving basic urban problems such as traffic, air pollution and the like, creating new jobs and strengthening citizen participation.