International Grammar School vs Reddam House
🇦🇺 Sydney · Side-by-side comparison on verifiable public data.
Neither International Grammar School nor Reddam House sits in a market with a public inspectorate, so both are assessed on verifiable accreditation, curriculum authorisation, and published data rather than an official quality rating. Both run the same curriculum (National), so the differences come down to pathway detail, campus culture, and specific language/boarding arrangements rather than the curriculum framework itself.
Key Facts
| International Grammar School | Reddam House | |
|---|---|---|
| Curriculum | National | National |
| Ages | 3–18 | 1–18 |
| Languages of instruction | English | English |
| Annual fees | not public | AUD 30,840–49,315 (domestic, 2026; overseas higher) |
| Enrollment | — | 1,102 |
| Boarding | Day only | Day only |
| Accreditations | NESA, AHISA, AIS NSW | NESA |
Strengths
- ✓Compulsory second language from Preschool with partial-immersion bilingual delivery to Year 6 — rare depth for an Australian day school
- ✓Five second-language options plus a compulsory third language from Year 7; languages continuable to HSC level
- ✓Strong, publicly published HSC outcomes (top ATAR 98.75; ~30% of cohort ATAR ≥90 in 2024) including First-in-State language results
- ✓Secular and co-educational — a deliberate non-denominational alternative
- ✓Inner-city Ultimo location moments from Sydney CBD; Preschool–Year 12 continuity
- ✓Exceptional HSC results for a non-selective school — repeated NSW top-10 (and reported top-5) finishes
- ✓Co-educational and fully secular/non-denominational — rigour without religious affiliation or single-sex structure
- ✓Full continuity — Early Learning (age 1) through Year 12 on linked Eastern Suburbs campuses
- ✓Modern, non-traditional ethos — contemporary pedagogy versus heritage-school conservatism
- ✓Global network access via Inspired (including premium boarding schools worldwide)
Trade-offs
- !Does NOT offer the IB Diploma despite the 'International' name — senior pathway is HSC only (verified across the official site)
- !No current public enrolment figure verifiable (most recent data is ~1,100–1,200 from 2007 via Wikipedia)
- !Published fees not extractable — only downloadable 2026 PDF schedules; overseas-student fees 'available upon request'
- !EAL/EALD support not stated on public pages (cannot confirm)
- !Inner-city site implies limited green/sporting space versus suburban grammar schools
- !For-profit ownership (Inspired Education Group since 2019) — commercial operator priorities differ from not-for-profit/trust-governed peers; reportedly forgoes government funding
- !Younger institution (founded 2000/2001) — lacks the alumni network, endowment and heritage of century-old Sydney independents
- !High fees with a steep overseas-student premium (2026 senior fees ~AUD 49,315 domestic rising to ~AUD 58,080 for overseas students)
- !No on-site boarding — relies on the Inspired network for boarding access
- !Strong HSC reputation is largely school- and media-reported; tertiary-destination claims are not independently published
Best Fit For
- • Families wanting genuine early multilingualism (a second language from Preschool)
- • Secular, co-ed seekers wanting a non-denominational alternative
- • CBD-proximate inner-Sydney families
- • HSC-pathway students wanting strong language outcomes
- • Expat / internationally mobile families wanting a co-ed, secular, academically strong HSC pathway
- • Families prioritising HSC performance without academic-selection entry barriers
- • Households in Sydney's Eastern Suburbs seeking a single school from early years to Year 12
- • Families who value a modern, less traditional school culture
University Placement
School-reported · not independently verified
School-reported, unverified: 2024 HSC top ATAR 98.75; ~11.6% ≥95, ~29.4% ≥90; 66 Distinguished Achievers; First-in-State in Spanish Extension and German Beginners.
School-reported and media-cited, unverified: 'Top 10 for HSC results in NSW for the last 5 consecutive years' (official); media records NSW top-10 across multiple years and top-5 in 2022–2024 — described as the only non-selective school to reach top-10 in those years. Independent aggregators were unreachable, so exact success-rate figures are not re-verified.
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Frequently Asked Questions
Should I choose International Grammar School or Reddam House?
International Grammar School is best for: Families wanting genuine early multilingualism (a second language from Preschool). Reddam House is best for: Expat / internationally mobile families wanting a co-ed, secular, academically strong HSC pathway. The right choice depends on target curriculum, budget, and family priorities — the two are not linearly comparable.
How do fees compare between International Grammar School and Reddam House?
International Grammar School: not public. Reddam House: AUD 30,840–49,315 (domestic, 2026; overseas higher). Verify against each school's own published fees; some figures are sourced from third-party aggregators.
What curricula do International Grammar School and Reddam House offer?
International Grammar School: National. Reddam House: National.
Do International Grammar School or Reddam House offer boarding?
International Grammar School: day school only. Reddam House: day school only.
This comparison is BrightKey's independent assessment using verifiable public data only. University-placement figures are school-reported and not independently verified. BrightKey takes no payments from schools. Our method →