Glenthorne High School
About the school
Glenthorne High School is an open secondary school in Sutton.
Latest Ofsted inspection
Published Ofsted information, current as at 31 July 2026. Inspection outcomes are not performance rankings.
- Latest inspection
- 6 January 2026
- Published
- 23 March 2026
- Inspection type
- S5 Inspection
Published inspection outcomes
Safeguarding
Met
Inclusion
Exceptional
Curriculum and teaching
Strong standard
Achievement
Strong standard
Attendance and behaviour
Strong standard
Personal development and wellbeing
Exceptional
Post-16 provision
Strong standard
Leadership and governance
Strong standard
Previous inspection framework
These judgements are retained by Ofsted from an earlier inspection framework.
Overall effectiveness
Good
Quality of education
Good
Behaviour and attitudes
Outstanding
Personal development
Good
Leadership and management
Good
Safeguarding
Yes
Early years
Not applicable
Sixth form
Outstanding
Results and school context
GCSE and key stage 4
Attainment 8
- School
- 61.6
- Sutton
- 59.3
- England
- 46.1
Progress 8
The DfE has not published this measure for 2024/25.
- School
- N/A
- Sutton
- N/A
- England
- N/A
English and maths grade 5+
- School
- 75.20%
- Sutton
- 67.90%
- England
- 45.40%
English and maths grade 4+
- School
- 87.80%
- Sutton
- 82.10%
- England
- 64.80%
EBacc entry
- School
- 75.20%
- Sutton
- 57.10%
- England
- 40.50%
EBacc average point score
- School
- 5.8
- Sutton
- 5.47
- England
- 4.09
A levels and sixth form
Average A-level grade
- School
- B
Average A-level points
- School
- 38.87
AAB or better
- School
- 19.90%
Pupil context and attendance
DfE context data for 2024/25. These characteristics provide context and are not quality ratings.
Pupils on roll
1782
Girls
51.57%
Boys
48.43%
SEN support
8.47%
Education, health and care plan
4.43%
English as an additional language
25.10%
Eligible for free school meals in the past six years
15.60%
Overall absence
5.9
Persistent absence
11.75
Pupil destinations
DfE destination measures from the 2024/25 release. These outcomes are published after a time lag.
After Key Stage 4
Cohort
256
Sustained education or employment
96%
Education
94%
Apprenticeship
1%
Employment
1%
Not sustained
3%
After 16–18 study
Cohort
170
Sustained education or employment
89%
Higher education
59%
Further education
1%
Apprenticeship
5%
Employment
18%