Abstarct: The energy crisis, along with growing demand due to population growth, the expansion of cities and industries, is one of the major issues and challenges facing the world in recent years. In addition, the damage caused by this situation has endangered the health of the community, the environment, and the climate. The construction industry, along with other industries, has a large share of energy consumption. However, most of these costs are used in the non-productive sector, which has no added value for the country. Therefore, paying attention to the issue of energy in the construction sector becomes a higher priority. Accordingly, by focusing on the evaluation of energy performance in the building during the design process, a major part of this need can be identified and controlled. Zero energy buildings are one of the best solutions in this process. The purpose of this study is to evaluate the zero energy building and the feasibility of realizing this concept. Therefore, with the priority of cost-effective solutions to reduce energy demand to achieve an office building baxsed on the concept of zero energy, studies have been done in Shahroud. In this research, to investigate the effect of building physics and effective components on energy consumption, design builder software has been used. Also, to design the zero energy building to obtain accurate information baxsed on real conditions, a baxse building has been selected to control the outputs and ensure the accuracy of the simulation results. To validate the results, field harvesting of building physics information, surface temperature, and energy consumption of Shahroud Gas Department has been done. The design process is followed by the analysis of climate data and using passive solutions, energy efficiency solutions, and renewable energy production systems. According to the results, the energy consumption of the Shahroud Gas Department has increased from 301.3kWh/m 2with a basic design to 57.6 kWh/m2, which indicates a saving of more than 80% in energy consumption. Also, at the end of this process, a balance between energy demand and production is established with the photovoltaic panel system, which has made it possible to achieve zero energy building.