Dr Challoner's High School
School summary
A selective girls' grammar in Amersham, Dr Challoner's High School has earned an Ofsted rating of Outstanding across every category, from quality of education to sixth form. With roughly 1,358 girls on roll against a capacity of 1,145, it is a large and clearly oversubscribed school. Entry at 11 is competitive and managed through The Buckinghamshire Grammar Schools consortium. The pupil intake is relatively diverse linguistically, with around one in six speaking English as an additional language.
How hard is it to get in?
Exceptionally competitive · 5 of 5 on the Passmate scale. Demand here is among the very highest of any selective school in England - a strong exam performance matters more than at almost any other school.
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.
Key dates · 2028 entry
Free month · No payment needed
Latest results
Attainment 8
79.1
National average 46.9
GCSE grade 5+ (English & Maths)
100%
National average 47%
GCSE grade 9-7
83%
National average 23%
A-level A*-A
56%
National average 28%
A-level A*-B
83%
National average 55%
Inspection reports
- Ofsted overall
- Outstanding
- Quality of education
- Outstanding
- Behaviour & attitudes
- Outstanding
- Last inspected
- 21 November 2023
Teaching & academics
The academic results are exceptional. The average Attainment 8 score of 79.1 sits far above the national average of 46.9, and every pupil achieves grade 5 or above in English and Maths against a national figure of just 47%. With a pupil-to-teacher ratio of about 18.7 and an Outstanding judgement for quality of education, this is a school built for academically able girls who will thrive in a demanding environment.
Languages
Headteacher · Alan Roe
Beyond the classroom
Main sports
School life & ethos
- Founded
- 1962
- Religious character
- None
- Boarding
- No
- SEN support
- 2.8%
- EHC plans
- 0.29%
- English as additional language
- 15.8%
- Free school meals
- 2.5%
Schools nearby
Dr Challoner's Grammar School
Amersham, South East
Herschel Grammar School
Slough, South East
Upton Court Grammar School
Slough, South East
Sir William Borlase's Grammar School
Marlow, South East
The Latymer School
London, Greater London
Kendrick School
Reading, South East
Watch Passmate decide how to teach.
Answer as a child would. Left: what they see. Right: what it learns about them.
An academically elite girls' grammar where strong results and an across-the-board Outstanding rating come hand in hand with fierce competition for the 180 places at 11.
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.
Works alongside your child’s tutor - not instead of them.
Free month · No payment needed
Dr Challoner's High School 11+: frequently asked questions
Passmate rating: benchmarked against every selective school in England using official admissions data. It measures demand for places, not school quality. Updated July 2026.
Compiled from public data. Last checked 5 June 2026.