The Costello School
About the school
The Costello School is an open secondary school in Hampshire.
Latest Ofsted inspection
Published Ofsted information, current as at 31 July 2026. Inspection outcomes are not performance rankings.
- Latest inspection
- 10 February 2026
- Published
- 20 April 2026
- Inspection type
- S5 Inspection
Published inspection outcomes
Safeguarding
Met
Inclusion
Expected standard
Curriculum and teaching
Expected standard
Achievement
Expected standard
Attendance and behaviour
Expected standard
Personal development and wellbeing
Expected standard
Leadership and governance
Expected 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
Good
Personal development
Outstanding
Leadership and management
Good
Safeguarding
Yes
Early years
Not applicable
Sixth form
Not applicable
Results and school context
GCSE and key stage 4
Attainment 8
- School
- 47.3
- Hampshire
- 45.5
- England
- 46.1
Progress 8
The DfE has not published this measure for 2024/25.
- School
- N/A
- Hampshire
- N/A
- England
- N/A
English and maths grade 5+
- School
- 49.60%
- Hampshire
- 44.80%
- England
- 45.40%
English and maths grade 4+
- School
- 69.20%
- Hampshire
- 65.10%
- England
- 64.80%
EBacc entry
- School
- 80.80%
- Hampshire
- 33.60%
- England
- 40.50%
EBacc average point score
- School
- 4.49
- Hampshire
- 4.02
- England
- 4.09
Pupil context and attendance
DfE context data for 2024/25. These characteristics provide context and are not quality ratings.
Pupils on roll
1222
Girls
48.61%
Boys
51.39%
SEN support
14.16%
Education, health and care plan
3.11%
English as an additional language
14.80%
Eligible for free school meals in the past six years
16.61%
Overall absence
8.8
Persistent absence
22
Pupil destinations
DfE destination measures from the 2024/25 release. These outcomes are published after a time lag.
After Key Stage 4
Cohort
224
Sustained education or employment
94%
Education
89%
Apprenticeship
4%
Employment
1%
Not sustained
5%