Established in 1993 with 67 students, KISU has grown steadily over time. It currently accommodates about 400 students representing 46 nationalities. State-of-the-art facilities include four science labs, three computer labs, three music rooms, three performance areas, an indoor sports hall, outdoor basketball court, 25 metre eight lane competition swimming pool, two libraries, smart boards in most classrooms and a five acre playing field. .

Students participate in an extensive range of extracurricular activities including outdoor education and overseas trips, to diverse destinations such as The UK, France, Italy, Mount Kilimanjaro and an annual ski trip in Europe. The holistic education also fosters involvement in community building activities.