St John's Preparatory and Senior School
School summary
St John's Preparatory and Senior School is a small, co-educational independent school in Potters Bar, taking pupils through to A-level. With around 497 on roll, it sits at the more intimate end of the independent sector, which often means smaller classes and a tightly knit community. It has no religious affiliation and is a day school, so it may suit families seeking a non-denominational setting within the Enfield area of Greater London.
Where every mark matters.
Places are limited and demand is high, so exam performance is what sets candidates apart. Passmate turns the months ahead into ten focused minutes a day on the exact topics this school tests.
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Inspection reports
- Last inspected
- 14 June 2023
Teaching & academics
The school follows a traditional academic path, preparing pupils for GCSE and then A-level. As an independent school inspected by the ISI rather than Ofsted, it operates within the framework familiar to fee-paying families. Entry at 11 via the 11+ marks one of the key transition points into the senior school.
Sixth form
Qualifications offered
School life & ethos
- Religious character
- None
- Boarding
- No
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A compact, all-through independent in Potters Bar for families who value a smaller school carrying pupils all the way to A-level.
That’s where Passmate comes in. Tutoring is the most effective thing in a child’s preparation - a well-tutored child can outperform the vast majority of their peers. Passmate works alongside your tutor, not instead of them: it learns how your child thinks, finds the gaps, and shows the tutor exactly where to spend each session - so the limited time you have lands on what actually decides a place.
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St John's Preparatory and Senior School 11+: frequently asked questions
Compiled from public data. Last checked 5 June 2026.