As part of its development, a third runway (Runway 15/33) and a new air traffic control tower (Tower West) were built to support its operation. klia2 has an initial capacity of 45 million passengers per year. The terminal has a built-up area of 257,845 sqm with 68 departure gates, 10 remote stands, 80 aerobridges, includes a retail space of 35,000 sqm to accommodate a total of 220 retail outlets. The main terminal building of klia2 is connected with its satellite piers with a skybridge, making it the first airport in Asia with such facility. klia2 is certified with Leadership in Energy & Environmental Design (LEED).