In recent years, there has been a tendency to quantify academic performance in terms of the ENTER (Equivalent National Tertiary Entrance Ranking) scores obtained by Year 12 students. Although offering non-selective entry, PLC consistently rates highly in this area. Since 2000, 69% of all PLC Year 12 students have been placed in the top 10% of all students in Australia by gaining an ENTER of 90.00 or higher.

In years 11 and 12 students have the opportunity to study either the Victorian Certificate of Education (VCE) or the International Baccalaureate (IB). Both programs are normally taken over two years.

In the Senior School , specialist facilities include eleven science laboratories, computer laboratories, art studios, ceramics studio, library and information resource centre, canteen and student dining room, a 200-seat lecture theatre and a 1,000-seat Assembly Hall that also caters for drama productions.