Charters School vs St Mary's School Ascot
Side-by-side comparison of key school data
Charters School
Ascot
Overview
Phase
Secondary
Senior
Type
Academy converter
Other independent school
Age Range
11–18
11–18
Gender
Mixed
Girls
Religious Character
None
Roman Catholic
Admissions
Non-selective
-
Local Authority
Windsor and Maidenhead
Windsor and Maidenhead
Pupils & Capacity
Pupils
1707
401
Capacity
1740
405
Occupancy
98%
99%
FSM %
11.0%
-
Nursery
Sixth Form
Boarding
Ofsted
Overall Rating
Good
-
Quality of Education
Good
-
Behaviour & Attitudes
Good
-
Personal Development
Good
-
Leadership & Management
Good
-
Last Inspected
Mar 2023
-
Performance (2026)
Progress 8
-
-
Attainment 8
53.2
32.2
GCSE Eng+Maths 5+
60.4%
0%
KS2 Reading
-
-
KS2 Maths
-
-
KS2 Writing
-
-
A-Level Performance (2024/25)
Average Grade
B-
A-
Points Per Entry
35.5
47.2
Best 3 A-Levels
B-
A-
AAB+ %
17%
41%
Value Added
Below average
Average
A-Level Students
170
52
Retention
99%
-
University Destinations (2022/23 cohort)
Top-third university
33%
-
Degree course
79%
-
Any L4+ destination
80%
-
Apprenticeships
1%
-
Cohort size
175
-
A-Level Subjects
Subjects offered
15
15
Top subjects
Psychology (122)
Mathematics (106)
Mathematics (98)
Psychology (96)
Chemistry (84)
Biology (84)
Economics (72)
Media / Film / TV Studies (70)
Mathematics (70)
Mathematics (40)
English Literature (34)
Biology (34)
Chemistry (34)
History of Art (30)
History of Art (30)
English Literature (30)