The profile of Olivet witnessed a remarkable rise in the 1960s when the school was noted for all-round excellence in academics and sports, the school had facilities for O'level and A'level candidates at that time. The A'level program was abolished in 1989. The school was one of the fewschools in Nigeria outside Lagos equipped with hostel facilities, staff quarters, excellent laboratories, workshops, agricultural center with poultry/fish pond and sports facilities. As a result, Olivet Heights was a domineering force in the western part of Nigeria in inter-school academic competitions/projects as well as sports: soccer, basketball, hockey, handball and athletics. Also available in the school were facilities for Lawn Tennis, Cricket, Squash, Badminton, Volleyball, Chess and Table Tennis. Most of the facilities witnessed a steady decay from the 1990s.
Olivet Heights is a predominantly residential high school. The hostel structure was organized into four "houses" named after two indigenous and two American Baptist pastors - Atanda, Odetayo, Locket, and Pinnock. In addition to the residential arrangement for boarding students, non-residential students were also assigned to the 4 Houses for annual inter-house quiz, debates & sports competitions which are used to unearth promising talents for regional and national competitions. In recent years, two new houses were added - Homer Brown and JBP Lafinhan - in honor of the last American Principal and the first Nigerian Principal.
Principals
Mrs. J. C. Powell, 1946
Deacon T. A. Okanla, Headmaster 1945-1952
Rev. Carl F. Whirley, 1948
Rev. W. Joel Fergeson, 1948-1951
Rev. J. B. Durham, Acting Principal 1951
Rev. M. L. Garrett, Acting Principal 1952-1953
Mr. E. A. Iyanda, Acting Principal 1955-1957
Rev. Homer A. Brown, 1957-1962
Rev. J. B. P. Lafinhan, 1962-1972
Chief R. F. Fasoranti, 1973-1975
Chief S. O. Omitade, 1975-1977
Chief J. I. Popoola, 1977-1982
Mr. I. A. Adisa, 1982-1989
Mr. A. A. Adeniran, 1990-1994
Mr. A. A. Adeniji, 1994-2000
Mr. S. O. Okegbenle, 2000-2002
Mrs. F. M. Taiwo, 2002-?
Alumni
The school has a versatile alumni association. The association has been particularly helpful in providing facilities for the current students of the school. A massive perimeter fence and a well-equipped health center were built in 1985 to mark the school's 40th anniversary, while a memorable 60th anniversary in 2005 was marked with an overhaul of the physical structures of the school. Alumni websites & related:
Official website: https://web.archive.org/web/20140101234343/http://olivetheightsnosa.com/
