In this paper, first we will have a review and basic studies of sustainability. Next, as educational buildings have more energy consumption, we will study the current situation of architectural and energy consumption details of our selected and built case study. The simulations used in this research are done in the framework of Grasshopper and Ladybug and Honeybee plugins. Energy-Plus and Open Studio simulation engines are responsible for energy simulation in these plugins and Radiance and Daysim engines are responsible for daylight simulations. The results of the research show that despite the positive points, many of the negative points have been detected that led to high energy consumption and as the project is built, availability of changes are harder. The results shows that according to the mentioned factors, analysis and simulations the application of internal insulation for exterior walls and changing the type of window to low-emission double-glazing window, reduces energy consumption in the heating sector by 12%, energy consumption in the cooling sector by 17% and the use of intelligent lighting systems have reduced energy consumption by 28%. Also the option to change the air conditioning system and also daylight situation is completely rejected as the simulations confirms.