Grimsdyke School
About the school
Grimsdyke School is an open primary school in Harrow.
Latest Ofsted inspection
Published Ofsted information, current as at 31 July 2026. Inspection outcomes are not performance rankings.
- Latest inspection
- 15 November 2023
- Published
- 19 December 2023
- Inspection type
- S5 Inspection
- Latest outcome
- Outstanding
Previous inspection framework
These judgements are retained by Ofsted from an earlier inspection framework.
Overall effectiveness
Outstanding
Quality of education
Outstanding
Behaviour and attitudes
Outstanding
Personal development
Outstanding
Leadership and management
Outstanding
Safeguarding
Yes
Early years
Outstanding
Sixth form
Not applicable
Results and school context
Key Stage 2 results
Combined attainment
Reading, writing and maths expected standard
- School
- 87%
- Harrow
- 72%
- England
- 62%
Reading, writing and maths higher standard
- School
- 12%
- Harrow
- 10%
- England
- 8%
Subject attainment
Reading expected standard
- School
- 91%
- Harrow
- 82%
- England
- 75%
Writing expected standard
- School
- 87%
- Harrow
- 79%
- England
- 72%
Maths expected standard
- School
- 92%
- Harrow
- 84%
- England
- 74%
Grammar, punctuation and spelling expected
- School
- 90%
- Harrow
- 83%
- England
- 73%
Grammar, punctuation and spelling higher
- School
- 68%
- Harrow
- 47%
- England
- 30%
Science expected standard
- School
- 91%
- Harrow
- 86%
- England
- 82%
Scaled scores
Reading average scaled score
- School
- 110
- Harrow
- 107
- England
- 106
Maths average scaled score
- School
- 111
- Harrow
- 108
- England
- 105
Grammar average scaled score
- School
- 112
- Harrow
- 109
- England
- 105
Pupil context and attendance
DfE context data for 2024/25. These characteristics provide context and are not quality ratings.
Pupils on roll
628
Girls
48.89%
Boys
51.11%
SEN support
6.37%
Education, health and care plan
3.66%
English as an additional language
38.40%
Eligible for free school meals in the past six years
7.17%
Overall absence
3.92
Persistent absence
6.29