Istanbul Airport has become the largest building to achieve LEED Gold certification from the US Green Building Council (USGBC).
The airport was recognized for low water consumption, high energy efficiency, and for its heating, cooling and ventilation and lighting systems. Low waste was noted from when construction of the airport started, with most waste generated during the work sent for recycling or reuse. The air handling system was designed to improve air quality and indoor building chemicals were selected in line with international human health limits.
LEED Certification system is a long-term process starting from the design process to the completion of the buildings, and it also covers issues that concern multiple disciplines. The system evaluates buildings on various topics such as sustainable land, water efficiency, energy and atmosphere, materials and resources, indoor quality of life, innovation in design, and local importance. The buildings that meet the prerequisites are registered at the level of Certified, Silver, Gold or Platinum according to the points they received as a result of the evaluations. Criteria such as encouraging public transportation and alternative transportation systems within the scope of LEED headings, applying some methods for water saving and efficient use of water, making the design and system selection to increase energy efficiency are at the forefront. In addition to these titles, issues such as preventing and removing smoke cigarettes, which are harmful to human health, from indoor environment, improving and controlling indoor air quality and benefiting from daylight are also evaluated.