Although Senior College did originally offer the
NCEA courses, the institution since switched to the full
Cambridge International Examination system, and gained 34 Top in the World and Top in New Zealand Awards. Students could take courses at various levels such as
IGCSE and AS and
A, however they were only able to take senior school level courses (NZ years 11–13). In November 2013, ACG Senior College also became an IB World School. Students could take 6-month and 1-year Pre-IB programmes as well as the 2-year IB Diploma Programme (IBDP). Some students in Year 13 were at Senior College part-time and attended university courses at the
University of Auckland simultaneously. Each year, the college took a number of able students who wished to move from Year 9 directly into Year 11. ==History==