The increase in energy consumption in office buildings, environmental consequences, and rising energy costs have made energy consumption optimization a necessity. This study was conducted to analyze the performance of various office buildings in the semi-arid and cold climate of Tabriz city, based on the national standard 14254 (National Energy Standard). This study examined energy consumption (electricity and gas) in 22 office buildings. The total equivalent energy consumption of the buildings was calculated using data on the amount of gas and electricity consumed by the building, and compared with the indicators of the national standard of Iran to determine the energy label of each building. In some office buildings, server rooms are one of the most important energy consumers throughout the year due to the need for permanent cooling. Therefore, in this study, the status of server rooms was examined separately. The results showed that the energy consumption ratio in these buildings varied between 2.94 and 14.8. The average energy consumption ratio in these buildings was also obtained as 5.81. Also, short-term and long-term solutions for reducing energy consumption in these buildings are presented in this article. The findings of this research can provide a model for optimizing energy consumption in other similar buildings in cold and semi-arid climates or other climates.