ACS Hillingdon is a centre of excellence for the Arts, with a bespoke music centre, Harmony House, complete with digital recording studio, rehearsal rooms, practice studios, a computer lab for music technology and two music technology labs. The school also has a dance studio.
56 sports teams compete at Middle and High School level, with excellent facilities including a well-appointed full-size gymnasium, tennis courts, and grass sports fields. Additional extensive sports facilities are located offsite at neaby Iver.
The school promotes a lifelong enjoyment of physical activity through its balanced programme. Apart from developing coordination, balance, and physical fitness, it views sports within the wider educational context, teaching team spirit, self-confidence, and discipline.