Cranbrook is an independent boys' school in Bellevue Hill offering the IB Continuum from primary through senior years.
NAPLAN well above the national average at every tested year level and a median ATAR of 89.6; the result is an A- overall.
Cranbrook is an independent boys' school in Bellevue Hill offering the IB Continuum from primary through senior years. The school combines traditional structure with strength in the arts and sports, supported by excellent facilities including the Murray Rose Aquatic Centre and a rural campus at Wolgan Valley. Service learning is embedded across the curriculum. It suits families valuing a disciplined, well-resourced environment with a commitment to rounded development beyond academics.
Cranbrook School is also known as Cranbrook Bellevue Hill.
Median ATAR 89.6 ranks #7 of 16 New South Wales schools. Within New South Wales Independent schools, ranks #7 of 14.
1 HSC Top Achievers — #129 of 240 New South Wales schools.
Cranbrook School has an overall SchoolRank score of 79.2/100, rated "Excellent". This score is calculated from academic results, student growth, wellbeing, programs, and value for money. Academically, the school grades A− (Excellent) against other Australian schools. The school's ICSEA (Index of Community Socio-Educational Advantage) is 1181 (99th percentile; the national average is 1,000).
In 2025 NAPLAN testing at Cranbrook School, Year 3 students averaged 482 across the tested NAPLAN domains, well above the national average of 407 for that year level, and Year 5 students averaged 571, well above the national average of 490 for that year level, and Year 7 students averaged 601, well above the national average of 540 for that year level, and Year 9 students averaged 621, well above the national average of 569 for that year level. Relative to national year-level averages, the school's strongest domain is Numeracy. National averages are specific to each year level, because NAPLAN scores are scaled so older year levels score higher. A school-wide average can't be compared with a single national figure.
Cranbrook School is a large Independent combined school with approximately 1,693 students. It offers education for years K-12. As an Independent school, enrolment typically involves an application process. Contact the school directly for enrolment criteria, waiting lists, and open day information.
Cranbrook School has approximate annual tuition fees of $45,662. Actual fees may vary by year level, and additional costs for uniforms, camps, and extracurricular activities typically apply. The school grades B (Average) for value for money, which weighs academic results against the cost of attendance.
Cranbrook School has a student-to-teacher ratio of 9.0:1. This is well below the national average of approximately 14:1, meaning students generally receive more individual attention. Support staff make up 38% of the workforce, providing additional learning assistance and pastoral care. The student attendance rate is 95%, which is excellent.
Cranbrook School has a median ATAR of 89.6. The top ATAR was 99.75. In the 2025 HSC, 11 students at Cranbrook School were all-round achievers, with results in the top band across 10 or more units. The school had 1 top achiever place across 2025 HSC courses.
Cranbrook School is located in Bellevue Hill, NSW, in a major city. Its ICSEA is 1181 (99th percentile; the national average is 1,000). ICSEA measures the advantage of a school's community, from its parents' education and occupation, not the school's quality. A school with a lower ICSEA and strong academic results may be teaching particularly effectively.