- PLC is an accredited International Baccalaureate (IB) School
- Member of The Alliance of Girls' Schools Australasia
- Member of Melbourne Schools Partnership International (MSPI) with the University of Melbourne. https://futurestudents.unimelb.edu.au/info/school‐students/mspi
- Member of the Australian Boarding Schools Association.
- CRICOS (Commonwealth Register of Institutions and Courses for Overseas Students) School. CRICOS No. 00334M
- Member of Girls' Sport Victoria