St John's Preparatory and Senior School
St John's Preparatory and Senior School is an independent school in Enfield for pupils aged 3 to 19. It has 493 pupils on roll. The latest Ofsted rating for St John's Preparatory and Senior School is Outstanding, from an inspection in May 2019. In 2026 its average Attainment 8 score was 59.9, and 87% of pupils achieved grade 5 or above in both English and maths GCSE.
Ofsted inspection: May 2019. GCSE results: 2026. A-level results: 2025.
| Type | Independent School / Other independent school |
| Age Range | 3-19 |
| Religion | Unknown |
| Address | The Ridgeway Potters Bar Hertfordshire EN6 5QT |
| Phone | 01707657294 |
| Reference Number | 102065 |
General Makeup
| Number of pupils | 493 |
| Boy/Girl ratio |
Boys: 61.46%
Girls: 38.54% |
Year Groups
| Year | Boys | Girls | Total |
|---|---|---|---|
| 1 | Unknown | Unknown | Unknown |
| 2 | Unknown | Unknown | Unknown |
| 3 | Unknown | Unknown | Unknown |
| 4 | Unknown | Unknown | Unknown |
| 5 | Unknown | Unknown | Unknown |
| 6 | Unknown | Unknown | Unknown |
| 7 | Unknown | Unknown | Unknown |
| 8 | Unknown | Unknown | Unknown |
| 9 | Unknown | Unknown | Unknown |
| 10 | Unknown | Unknown | Unknown |
| 11 | Unknown | Unknown | Unknown |
| 12 | Unknown | Unknown | Unknown |
| 13 | Unknown | Unknown | Unknown |
Ethnicities
| Ethnicity | Percentage |
|---|
St John’s Preparatory and Senior School is marked by outstanding leadership, which creates a supportive and high-achieving environment for its pupils. The management team has transformed the school since the last inadequate inspection, focusing on inspiring teaching and a rich curriculum that results in exceptional academic outcomes. Pupils thrive in both their personal development and academic achievements, reflected in their confidence and engagement in learning activities. However, there are areas for improvement, particularly in consistently challenging pupils and enhancing the early years provision.
| Overall Ofsted Rating | Outstanding |
| Last Report Date | 12 Mar 2019 |
| Date | Report |
|---|---|
| 12 Mar 2019 | Standard inspection: |
| 08 Aug 2018 | Additional inspection |
| 01 Aug 2017 | Additional inspection |
| 28 Feb 2017 | Standard inspection: |
| 03 Jul 2012 | Standard inspection: |
| 22 Apr 2010 | Monitoring inspection |
| 17 Mar 2009 | Light touch inspection |
| 03 Jul 2006 | Standard inspection |
Strengths
- Inspirational leadership from headteachers
- Outstanding quality of education leading to exceptional outcomes
- Strong personal development and welfare of pupils
- High standards of behavior and motivation among pupils
- Rich and engaging curriculum
- Outstanding sixth form provision with tailored support
Areas for Improvement
- Inconsistent challenge provided by teachers to pupils
- Variety in early years provision impacting some children's progress
Attainment 8 Score
Attaimenment 8 is a measure of a pupil's average grade across a set of 8 subjects. The 8 subjects which make up Attainment 8 are:
- English
- Maths
- 3 subjects from qualifications that count towards the English Baccalaureate (EBacc), like sciences, language and history
- 3 more GCSE qualifications (including EBacc subjects) or technical awards from a list approved by the Department for Education
Each grade a pupil gets is assigned a point score from 9 (the highest) to 1 (the lowest). These scores are added up, with English and maths counted twice.
| School Score | Percentile (local) | Percentile (nationwide) |
|---|---|---|
| 59.9 | Locked: unlock for £9.99, one-off payment | Locked: unlock for £9.99, one-off payment |
GCSE Results
| Metric | School Score | Percentile (local) | Percentile (nationwide) |
|---|---|---|---|
| Grade 5 or above in English and maths | 87.2% | Locked: unlock for £9.99, one-off payment | Locked: unlock for £9.99, one-off payment |
| 5 or more GCSEs at grade 9-4 (or A-C) | 85.1% | Locked: unlock for £9.99, one-off payment | Locked: unlock for £9.99, one-off payment |
Attainment 8 Score
Attaimenment 8 is a measure of a pupil's average grade across a set of 8 subjects. The 8 subjects which make up Attainment 8 are:
Sample
UnlockGCSE Results
Sample
UnlockPoints
| Points | Percentile (local) | Percentile (nationwide) | |
|---|---|---|---|
| Average Points | 39.54 | Locked: unlock for £9.99, one-off payment | Locked: unlock for £9.99, one-off payment |
| Average Points (best 3) | 40.42 | Locked: unlock for £9.99, one-off payment | Locked: unlock for £9.99, one-off payment |
Grades
| School | Local | Nationwide | |
| Average Grade | B | C+ | C+ |
| Average Grade (best 3) | B | C+ | C+ |
| Percentage | Percentile (local) | Percentile (nationwide) | |
|---|---|---|---|
| Students getting AAB or better | 18.8% | Locked: unlock for £9.99, one-off payment | Locked: unlock for £9.99, one-off payment |
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See how St John's Preparatory and Senior School ranks locally and nationally. Percentile rankings against every other school, historic result charts, admissions data and post-GCSE destinations are all included.
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Unlock for £9.99In 2025–26, 2.8% of pupils at St John's Preparatory and Senior School were on SEN support (nationally 18.4%) and 0.2% had an education, health and care (EHC) plan (nationally 7.9%).
Source: Department for Education, Special educational needs in England (the 2025–26 school census). SEN support is extra help in school without an EHC plan. National figures are for all state-funded independent school schools. Counts are as published, with small numbers not hidden.
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|
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Oaktree School
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All schools in Enfield · Enfield local authority: places and applications
What is St John's Preparatory and Senior School's Ofsted rating?
The latest Ofsted rating for St John's Preparatory and Senior School is Outstanding, from an inspection in May 2019.
When was St John's Preparatory and Senior School last inspected by Ofsted?
St John's Preparatory and Senior School was last inspected in May 2019.
How many pupils does St John's Preparatory and Senior School have?
St John's Preparatory and Senior School has 493 pupils on roll.
What age range does St John's Preparatory and Senior School cover?
St John's Preparatory and Senior School for pupils aged 3 to 19.
What are St John's Preparatory and Senior School's GCSE results?
In 2026 its average Attainment 8 score was 59.9, and 87% of pupils achieved grade 5 or above in both English and maths GCSE.
Where is St John's Preparatory and Senior School?
St John's Preparatory and Senior School is at The Ridgeway, Potters Bar, Hertfordshire, EN6 5QT.