St Mary's School Ascot, Ascot
St Mary's School Ascot is an independent school for girls aged 11 to 18 in Ascot. It has a Roman Catholic religious character. It is inspected by the Independent Schools Inspectorate (ISI) rather than Ofsted; its most recent ISI inspection was a routine inspection in January 2025.
Data last updated 26 Oct 2026
St Mary's School Ascot in detail
St Mary's School Ascot in its own words
Coming up: an open day on Saturday 14 November 2026, an open day on Saturday 20 March 2027 and an open day on Saturday 22 May 2027. Check the school's website before you go, as dates can change.
All school open days in Windsor and Maidenhead
Open days on the school's site (school website)
Source: The school's own website
Results
The Department for Education's GCSE measures do not count IGCSEs, which many independent schools take instead of GCSEs, so the Attainment 8 and English and maths figures it publishes for St Mary's School Ascot can understate its results. We do not rank or compare them; ask the school for its own GCSE and IGCSE results.
Compared with nearby schools
The nearest other independent schools to St Mary's School Ascot are St George's School (1 mile); The Marist School (1.1 miles, selective); Sunningdale School (1.3 miles); and Hall Grove School (1.7 miles).
St George's SchoolThe Marist SchoolSunningdale SchoolHall Grove School
Where pupils go next
Of the 63 students who left the sixth form in 2023/24, 71% went on to university or other higher education and 6% into work.
Who goes there
In 2026, 110 pupils (27.4%) received SEN support and 0 (0%) had an education, health and care plan.
Getting there
The nearest railway station is Ascot Railway Station, about 0.9 miles away in a straight line.
The area around the school
Measured by the 2025 English Indices of Deprivation, the neighbourhood St Mary's School Ascot stands in is among the 10% least deprived neighbourhoods in England. This describes where the school is, not where its pupils live.
In August 2026, police recorded 34 crimes within a mile of the school, most often violence and sexual offences, anti-social behaviour and other theft. That is well below the typical figure around schools in Windsor and Maidenhead (80).
Sources: DfE school performance data (averages: state mainstream schools); DfE destination measures; DfE school census and special educational needs statistics; NaPTAN (Department for Transport); English Indices of Deprivation 2025 (MHCLG); data.police.uk street-level crime
Key Information
DfE GIASISI Inspection Reports
Independent schools in England are inspected by the Independent Schools Inspectorate (ISI), not Ofsted.
Routine Inspection
21 January 2025
Regulatory Compliance
6 October 2021
Educational Quality / Focused Compliance
7 March 2017
Focused Compliance Inspection
7 March 2017
At a Glance
No
Boarding
No
Nursery
Yes
Sixth Form
No
Special Measures
How Does This School Compare?
Ranked against 2 nearby schools
Keep up with St Mary's School Ascot
Getting There
Bus Stops
Safety and surroundings
Road collisions within 500 m (2021 to 2025)
No injury road collisions were reported to the police within 500 m of the school's mapped location in 2021 to 2025.
The typical figure for schools in Windsor and Maidenhead is 6 (the median across 83 schools, same distance and years).
Serious and slight counts use the Department for Transport's severity adjustment, which allows for changes in how police forces record injuries; they are estimates, rounded to whole numbers. Distances are in a straight line. Source: Department for Transport, Road Safety Data (STATS19), Open Government Licence v3.0.
Commute and house prices
Capacity & Demand
School Occupancy
99%
Near capacity
401 pupils
405 places
4 spare places
as recorded on GIAS
Area Demand Pressure - Ascot
Based on MHCLG Live Table 122 (2024-25, last 5 years) for Ascot
Across Windsor and Maidenhead council
Places available
1,483
Applications
1,198
Got 1st preference
75.5%
Got preferred school
96.6%
All secondary applications across Windsor and Maidenhead council (2026/27), not just this school.
SEND & SEN Provision
SEN Overview
110
SEN Support
0
EHC Plans
27.4%
of Total Pupils
2026 academic year
Provision & Specialist Facilities
Pupils by Need Type
No need-level breakdown available
Pupil Demographics
Key Indicators
401
Total Pupils
0
Boys
401
Girls
2026 academic year
Feeder Primary Schools
Primary schools that likely feed into this school, based on proximity
Questions parents ask about St Mary's School Ascot
What are GCSE results like at St Mary's School Ascot?
The Department for Education's GCSE measures do not count IGCSEs, which many independent schools take instead of GCSEs, so the Attainment 8 and English and maths figures it publishes for St Mary's School Ascot can understate its results. We do not rank or compare them; ask the school for its own GCSE and IGCSE results.
When was St Mary's School Ascot last inspected?
St Mary's School Ascot is inspected by the Independent Schools Inspectorate (ISI) rather than Ofsted. Its most recent ISI inspection was a routine inspection in January 2025.
How many pupils go to St Mary's School Ascot?
St Mary's School Ascot has around 401 pupils on roll.
How do I apply to St Mary's School Ascot?
St Mary's School Ascot is an independent school and runs its own admissions rather than going through the local authority. Contact the school directly for entry requirements, assessment dates, fees and any bursaries.
How many road collisions happen near St Mary's School Ascot?
No injury road collisions were reported to the police within 500 m of the school's mapped location in 2021 to 2025. The typical figure for schools in Windsor and Maidenhead is 6 (the median across 83 schools, same distance and years).
Where is St Mary's School Ascot?
St Mary's School Ascot is at St Mary's Road, South Ascot, Ascot, Berkshire, SL5 9JF.
Source: Department for Transport, Road Safety Data (STATS19)