It has been over 20 years that emerging term “smart cities” has been used theoretically and practically and implemented in our built environments. Importance of smart cities is not ignorable due to the world crises such as energy issues which are threatening the future of mankind. Theories and strategies has been implemented in many major cites of developed countries but there are still major energy consumption and other critical issues in developing countries due to strategies, technological systems background and infrastructures on their way toward an industrialized country. Thus it is quiet tangible that developing countries and their cities have to come up with strategies that will improve general sustainability of them. One way to achieve this goal is study of successful examples in the world. The aim of this research is to study successful smart cities around the world that received ICF (Intelligent Community Forum) awards to find successful and practical strategies that can be implemented in developing countries. We will first go through world top leading cities, extracting their strategies and technological systems, later coming up with infra structures in developing countries and in our case, Tehran city in Iran and finally showing strategies and technological facilities and approaches that can be implemented in this city.
