<p>Today, achieving zero emission target is among the top priorities of the countries in efforts to reduce greenhouse</p><p>gases, especially carbon emissions. The places with the highest carbon emissions are urban areas, and especially the</p><p>construction and operation energy use related to buildings accounts for 40% of carbon emissions worldwide. Green</p><p>building approaches are one of the leading solutions to reduce environmental pollution and energy consumption. The</p><p>goal of green buildings is to leave a clean and beautiful environment for the future. In this context, they are buildings</p><p>that give importance to issues such as efficient use of energy in buildings, waste management (recycling, refunctioning,</p><p>etc.), water consumption and the use of environmentally friendly materials. It is of great importance that</p><p>the buildings of many educational institutions in our country are designed and constructed according to the green</p><p>building concept. Especially rapidly aging and increasingly inefficient buildings can lead to unnecessary carbon</p><p>emissions and high electricity bills. It is foreseen that a large part of the school building stock in our country will be</p><p>renovated or transformed. The goal of green buildings is to leave a clean and beautiful environment for the future,</p><p>including the efficient use of energy in buildings, waste management (recycling, re-functioning, etc.), water</p><p>consumption and the use of environmentally friendly materials. Less waste, less energy, comfort and health, which</p><p>are three important criteria in shaping the green building character, are also predominantly included in green</p><p>building certificates. In order for a building to be considered a green building, it must meet certain standards (green</p><p>building certification systems used in different countries; LEED, BREAM, GREEN STAR, CASBEE etc.). The main</p><p>objectives of a sustainable (green) building can be summarised as efficient use of energy, minimisation of health and</p><p>safety risks, active use of resources, reduction of waste, flexible and adaptable to changing conditions, long-lasting</p><p>building structure, healthy indoor air quality, protection of clean water supply, avoidance of hazardous and harmful</p><p>substances, protection of biodiversity, etc. In this study, the concept and standards of green building will be explained,</p><p>and in addition, determinations will be made, and recommendations will be made for green building standards that</p><p>include environmentally friendly, less energy-consuming sustainable building designs of existing educational institutions buildings. Although there are many research and studies on green building designs, there are not many&nbsp; studies on the transformation of thousands of inefficient old buildings into sustainable green buildings in our country. This study will provide a basis for the sustainable transformation of existing educational buildings.</p>