International Grammar School vs Sydney Grammar School
🇦🇺 Sydney · Side-by-side comparison on verifiable public data.
Neither International Grammar School nor Sydney Grammar School 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 | Sydney Grammar School | |
|---|---|---|
| Curriculum | National | National |
| Ages | 3–18 | 4–18 |
| Languages of instruction | English | English |
| Annual fees | not public | AUD 52,410/year (College Street, Years 7–13, 2026) |
| Enrollment | — | 1,800 |
| Boarding | Day only | Day only |
| Accreditations | NESA, AHISA, AIS NSW | NESA, AHISA, HMC |
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
- ✓Elite, publicly-verified HSC performance (3rd in NSW overall 2025; highest-placed independent school; 72% of cohort ATAR 95+)
- ✓Deep classical/academic curriculum including Latin, Classical Greek, German, French — multiple 'First in Course' state placements in 2025
- ✓Long heritage and prestige (founded 1854; alumni include three Australian Prime Ministers)
- ✓Three-campus K–12 continuity within Sydney (Edgecliff + St Ives prep feeding College Street senior)
- ✓Strong co-curricular breadth: music (scholarships), debating, drama, cadets, AAGPS sport (founding member)
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
- !Not registered for international students — excludes visa-dependent expat families entirely (Australian/NZ citizens and PRs only)
- !Boys-only — no option for families with daughters
- !Academically selective entry (Entrance Assessment in English/Maths + interview) — admission not guaranteed
- !No IB and no Cambridge pathway — HSC-only, less portable for globally-mobile families
- !Day-only (no boarding) and high fees (AUD 52,410/yr at College Street, 2026)
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
- • Academically high-achieving boys aiming for top ATAR/university outcomes
- • Sydney-resident families (citizens/PRs) wanting an elite HSC pathway
- • Families valuing a classical-languages, traditional academic ethos
- • Households seeking K–12 continuity within one institution
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 (SMH league table), 2025 HSC: ranked 3rd overall for success rate (highest-placed independent school), 2nd for Top Achievers. Of 199 students: 72.4% ATAR 95+, 84.9% 90+; 175 Distinguished Achievers listings, 7 First-in-Course. Unverified against raw NESA/UAC data.
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Frequently Asked Questions
Should I choose International Grammar School or Sydney Grammar School?
International Grammar School is best for: Families wanting genuine early multilingualism (a second language from Preschool). Sydney Grammar School is best for: Academically high-achieving boys aiming for top ATAR/university outcomes. 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 Sydney Grammar School?
International Grammar School: not public. Sydney Grammar School: AUD 52,410/year (College Street, Years 7–13, 2026). Verify against each school's own published fees; some figures are sourced from third-party aggregators.
What curricula do International Grammar School and Sydney Grammar School offer?
International Grammar School: National. Sydney Grammar School: National.
Do International Grammar School or Sydney Grammar School offer boarding?
International Grammar School: day school only. Sydney Grammar School: 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 →