St Mary's School for Girls
School summary
An independent girls' school in Colchester, St Mary's takes pupils from age three through to GCSE, with around 419 on roll at the smaller end of the scale. Its compact size lends itself to a close-knit community where pupils are known well as they progress. The Independent Schools Inspectorate awarded the school its highest grade of "excellent", a judgement matched by an equally strong rating for personal development. The school holds no religious affiliation and is led by headteacher Mrs Nicola Griffiths.
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
- ISI rating
- excellent
- ISI personal development
- excellent
- Last inspected
- 10 February 2026
Teaching & academics
Teaching is geared towards GCSE, with the school's ISI "excellent" rating reflecting the quality of provision across its single-sex setting. A smaller roll allows for close attention to individual pupils as they work towards their examinations.
Head · Mrs Nicola Griffiths
School life & ethos
- Religious character
- None
- Boarding
- No
Schools nearby
Colchester Prep & High School
Colchester, East of England
Holmwood House School
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Doucecroft School
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Littlegarth School
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OneSchool Global UK Colchester Campus
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The Ryes College
Sudbury, East of England
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A small, all-through girls' school in Colchester with top marks from inspectors for both academics and personal development. Best suited to families seeking a close, supportive environment up to GCSE.
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 Mary's School for Girls 11+: frequently asked questions
Compiled from public data. Last checked 5 June 2026.