Aldenham School
School summary
Founded in 1597, Aldenham School traces a long history through to a modern co-educational community in Elstree, Hertfordshire. Now spanning ages 3 to 18 with boarding available, it educates around 684 pupils, including a sixth form of 185. The Independent Schools Inspectorate rated the school excellent for both education quality and personal development, with all compliance standards met. As a Church of England foundation, it combines that heritage with a broad academic and co-curricular offer.
Where every mark matters.
Places are limited and demand is high, so exam performance is what sets candidates apart. Passmate turns the months ahead into ten focused minutes a day on the exact topics this school tests.
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Latest results
GCSE grade 9-7
44%
National average 23%
A-level A*-A
17%
National average 28%
A-level A*-B
51%
National average 55%
Inspection reports
- ISI rating
- excellent
- ISI personal development
- excellent
- Last inspected
- 29 April 2025
Teaching & academics
GCSE results stand out, with 44% of grades at 9-7 against a national average of 23%, well ahead of the typical picture. A-level outcomes are more in line with national norms: 17% reach A*-A and 51% A*-B, the latter close to the 55% average. Popular sixth-form choices include Business Studies, Psychology, Mathematics, Economics and History, with an EPQ option for those wanting independent research. The pupil-to-teacher ratio of 22 is on the higher side for an independent school, and notably 19% of pupils receive SEN support.
Languages
Popular GCSE subjects
Head of foundation · Alex Hems
Sixth form
- Sixth-form pupils
- 185
Popular A-level subjects
Qualifications offered
Beyond the classroom
Sport is prominent, with rugby, cricket, tennis, athletics, netball and hockey among the main games. Scholarships in music, drama, sport, art and design technology, alongside academic awards, point to genuine breadth beyond the classroom.
Main sports
School life & ethos
- Founded
- 1597
- Religious character
- C of E
- Boarding
- Yes
- SEN support
- 19.38%
- EHC plans
- 0.71%
Fees & bursaries
- Day fees (per year)
- £31,128
- Boarding fees (per year)
- £49,500
Means-tested bursaries available.
Schools nearby
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St Margaret's School
Bushey, East of England
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Stanborough Primary School
Watford, East of England
Stanborough Secondary School
Watford, East of England
Holland House School
Edgware, Greater London
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A long-established C of E school with strong GCSE attainment and a wide co-curricular life. Day fees reach around £31,000 and boarding up to £49,500, with means-tested bursaries available to widen access.
That’s where Passmate comes in. Tutoring is the most effective thing in a child’s preparation - a well-tutored child can outperform the vast majority of their peers. Passmate works alongside your tutor, not instead of them: it learns how your child thinks, finds the gaps, and shows the tutor exactly where to spend each session - so the limited time you have lands on what actually decides a place.
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Aldenham School 11+: frequently asked questions
Compiled from public data. Last checked 5 June 2026.