Head-to-head · 2026
Knox Grammar School vs Reddam House
Side-by-side 2026 comparison: fees, ICSEA, sector, gender, programs and boarding. Both in Sydney. Sourced from each school's published schedule and ACARA MySchool. Verified 11 June 2026.
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At a glance
The headline differences
- Sector: Knox Grammar School is Uniting Church; Reddam House is Independent (non-denominational).
- Gender: Knox Grammar School is boys; Reddam House is co-educational.
- Knox Grammar School offers boarding; Reddam House is day-only.
- Year 12 fees differ by $6,920: Reddam House is more affordable.
- Knox Grammar School is the older school (est. 1924 vs 2001).
- Both schools are in Sydney, so catchment + commute considerations are similar.
Comparison
Side-by-side
| Metric | Knox Grammar School | Reddam House |
|---|---|---|
| City / suburb | Wahroonga, Sydney | Bondi, Sydney |
| Sector | Uniting Church | Independent (non-denominational) |
| Gender | boys | co-educational |
| Year levels | Pre-K to Year 12 | Early Learning-Year 12 |
| ICSEA | 1187 | 1188 |
| Year 12 fee | $45,120 | $38,200 |
| Year 7 fee | $42,640 | $35,400 |
| Boarding | Yes | Day school |
| Founded | 1924 | 2001 |
| Religion | Uniting Church (originally Presbyterian); Christian values-based | Non-denominational |
All fees verified 11 June 2026 against each school's published schedule. Excludes uniforms, technology, camps, capital + boarding (unless shown).
Knox Grammar School
Standout strengths
- ›Largest GPS boys' school with broad co-curricular program
- ›Strong rugby, rowing and athletics
- ›Wellbeing-led 'Total Boy' framework
Uniting Church boys school in Wahroonga, Sydney. Largest GPS boys' school with broad co-curricular program
See full profile →Reddam House
Standout strengths
- ›Modern co-ed eastern suburbs
- ›Strong music + drama + visual arts
- ›Personalised learning pathways
Independent co-educational school in Bondi, Sydney's eastern suburbs. Founded 2001. Non-denominational, day-only.
See full profile →Common questions
FAQs
Which is better, Knox Grammar School or Reddam House?
"Better" depends on family priorities. By ICSEA, Reddam House. By 2026 Year 12 fee, Reddam House is more affordable. Both are in Sydney. The most meaningful comparison is on culture, programs, transport and entry pathway for your specific child – visit open days and talk to current parents.
What are the 2026 fees for Knox Grammar School and Reddam House?
Knox Grammar School's 2026 Year 12 tuition is $45,120 (Year 7: $42,640). Reddam House's 2026 Year 12 tuition is $38,200 (Year 7: $35,400). Both schools also charge additional levies (technology, camps, capital, uniform) typically adding 8-15% to headline tuition.
What are the ICSEA scores for Knox Grammar School vs Reddam House?
Knox Grammar School has an ICSEA score of 1187; Reddam House has 1188. The Australian median is 1000. ICSEA measures the socio-educational advantage of the school community – it correlates with academic outcomes but does NOT measure teaching quality or value-add. ICSEA is published by ACARA on MySchool.
Which school is older, Knox Grammar School or Reddam House?
Knox Grammar School is the older school (founded 1924 vs 2001 for Reddam House).
Do Knox Grammar School or Reddam House offer boarding?
Knox Grammar School: Yes. Reddam House: Day school only.
Next step
Model the 6-year cost for either school
Project Year 7-12 tuition with 4.5% annual indexation. Add boarding, levies and sibling discounts. Compare side-by-side.
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