St Mary's School Ascot
School summary
A Roman Catholic boarding and day school for girls founded in 1885, St Mary's School Ascot has built a reputation for academic excellence and pastoral depth. With around 403 pupils, it is a deliberately small school, and that intimacy is reflected in its ISI rating of 'excellent' for both education and personal development. The school takes its first formal intake at 11 and runs through to a sizeable sixth form of 123. Its Catholic foundation shapes a strong ethic of care alongside high expectations.
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
94%
National average 23%
A-level A*-A
63%
National average 28%
A-level A*-B
85%
National average 55%
Inspection reports
- ISI rating
- excellent
- ISI personal development
- excellent
- Last inspected
- 21 January 2025
Teaching & academics
Results sit well above national norms: 94% of GCSE grades fall in the 9-7 band against a national average of 23%, and at A-level 63% of grades are A*-A compared with 28% nationally. The curriculum is broad and traditional, with languages especially well served - Spanish, French, Italian and German are all offered - alongside strengths in classics, the humanities and sciences. History of Art, Government and Politics and Economics feature among popular sixth-form choices, and pupils can extend their study through the EPQ. Notably, 23.7% of pupils receive some form of SEN support, suggesting individual needs are actively identified and addressed.
Languages
GCSE subjects
Headmistress · Danuta Staunton
Sixth form
- Sixth-form pupils
- 123
A-level subjects
Qualifications offered
Beyond the classroom
Sport is varied and competitive, spanning hockey, netball, tennis, athletics, football, cricket and dance. Scholarships recognise academic ability, all-round talent and sporting promise, giving able girls a route to develop their particular strengths.
Main sports
School life & ethos
- Founded
- 1885
- Religious character
- RC
- Boarding
- Yes
- SEN support
- 23.7%
- EHC plans
- 0%
Mobile phone policy
Pupils allowed to bring one mobile phone. Years 7-8: basic phones without internet. Years 9+: smartphones registered on school network. Phones only allowed during specific times and areas. Confiscation for misuse. No second phones. Nightly collection from years 7-10.
Fees & bursaries
- Day fees (per year)
- £46,800
- Boarding fees (per year)
- £65,736
- Bursaries up to
- 110% of fees
Around five bursaries up to 110% of school fees available throughout the school; 20 further bursaries of lesser but still substantial amounts. All very discreet.
Schools nearby
Heathermount School
Ascot, South East
The Marist School
Ascot, South East
Sunningdale School
Ascot, South East
Hall Grove School
Bagshot, South East
LVS Ascot
Ascot, South East
Heathfield School
Ascot, 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 formidable Catholic girls' school where small numbers translate into close attention. Substantial, discreetly awarded bursaries - some covering more than full fees - mean access is not limited to those who can meet fees of up to £65,736 for boarding.
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.
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St Mary's School Ascot 11+: frequently asked questions
Compiled from public data. Last checked 5 June 2026.