The 5.2-hectare campus now contains the primary and secondary blocks of ACS (Primary) and ACS (Barker Road) respectively. In between the primary and secondary buildings is an administrative block housing the administrative office as well as the two libraries. The landscaped, open-air Student Plaza links the three buildings together. The cafeteria, bookstore, CCA rooms and Music Studios are one floor below the Plaza. The Arts Centre contains the Mrs Lee Choon Guan Concert Hall, Tan Cheng Siong Drama Theatre and the Lee Kong Chian Auditorium which can seat 830, 270 and 1,200 respectively.