The establishment of the International School in 1981 and its movement to a permanent site in October 1983 was part of the high points of the University of Lagos.
ISL alumni have gone on to attend universities around the world, particularly in Nigeria, Britain and the United States.
The Past Principals of the school include Mr. Nuhu Hassan (1997-2009), Dr. S.A. Oladipo (2009-2011), Mrs. Adora E. Ojo (2011-2017), Dr. M.B.
The school has also won numerous national and state laurels -- especially in basketball -- since its establishment.
[5] Entrance into International School Lagos is fiercely competitive and applicants have to attend a first round of tests, following which only successful applicants are invited to a second and final stage assessment which includes a tour of the school.