St Mary's School Ascot
Ascot, Windsor and Maidenhead, South East · SL5 9JF
Founded in 1885, St Mary's School Ascot is a small Roman Catholic boarding and day school for girls aged 11 to 18. With around 403 pupils, including 123 in the sixth form, it offers an intimate setting in which staff can know each girl well. The Independent Schools Inspectorate rated the school excellent for both overall quality and personal development, and found all compliance standards met. Its faith ethos and boarding provision shape daily life under Headmistress Danuta Staunton.
403
Pupils
excellent
ISI
£46,800
Day fees / yr
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Open in Google Maps ↗Overview & data
- Gender
- Girls
- Type
- independent (fee-paying) school
- Age range
- 11-18
- Pupils
- 403
- Location
- Ascot, Windsor and Maidenhead, South East
- Website
- https://www.st-marys-ascot.co.uk
- Telephone
- 01344 296600
Entrance & admissions
- Entry age
- 11
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Headteacher
Headmistress Danuta Staunton
Latest results
Attainment 8
33.9
National average 46.9
GCSE grade 5+ (English & Maths)
0%
National average 47%
GCSE grade 9-7
94%
A-level A*-A
63%
A-level A*-B
85%
Teaching & academics
At A-level, 63% of grades were awarded at A*-A and 85% at A*-B, a strong showing that suggests sixth-formers are well prepared for competitive university courses. Popular subjects span the sciences, humanities and arts, with Psychology, Mathematics, History of Art and the sciences among the favourites, and an EPQ is offered alongside GCSE and A-level. The published Attainment 8 figure of 33.9, below the national average of 46.9, sits oddly against a 94% rate of grades 9-7 at GCSE, so parents may wish to ask the school directly about how its results are reported. Around a quarter of pupils receive SEN support.
Sixth form
- Sixth-form pupils
- 123
Popular A-level subjects
Qualifications offered
Learning support & SEN
- SEN support
- 23.7%
- EHC plans
- 0%
Arts & extracurricular
Scholarships
Languages
Popular GCSE subjects
Sport
Main sports
Beyond the classroom
Sport is varied, ranging from hockey, netball and tennis to athletics, cricket, football and dance. The breadth of languages on offer, including Spanish, French, Italian, German and Latin, points to a culture that values academic curiosity beyond the core. Scholarships recognise academic, all-round and sporting talent.
Ethos & heritage
- Founded
- 1885
- Religious character
- RC
- Boarding
- Yes
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.
Money matters
- 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.
Inspection reports
- ISI rating
- excellent
- ISI personal development
- excellent
- Last inspected
- 21 January 2025
The last word
A small Catholic girls' school where boarding life, faith and strong A-level results come together. Generous and discreet bursaries, including some covering more than full fees, mean its considerable fees need not rule out families who would otherwise be priced out.
The Passmate verdict
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St Mary's School Ascot 11+: frequently asked questions
Where is St Mary's School Ascot located?
St Mary's School Ascot is located at St Mary's Road, South Ascot, Ascot, SL5 9JF.
What type of school is St Mary's School Ascot?
St Mary's School Ascot is an independent (fee-paying) school in South East.
How many pupils attend St Mary's School Ascot?
St Mary's School Ascot has approximately 403 pupils on roll.
What is St Mary's School Ascot's inspection rating?
St Mary's School Ascot is inspected by the ISI and was judged "excellent" at its inspection on 21 January 2025.
Compiled from public data. Last checked June 2026.