Upton House School
School summary
Upton House School is a small independent prep taking children from age two through to eleven, with around 278 pupils on roll in Windsor and Maidenhead, Berkshire. Its compact size lends itself to close attention and a sense of community across the early and primary years. The school is mixed and has no religious affiliation. Following its most recent inspection, the Independent Schools Inspectorate awarded the highest rating of "excellent". The school is led by Head Mrs Rhian Thornton.
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
- 4 February 2025
Teaching & academics
The Independent Schools Inspectorate judged Upton House "excellent", its top grade, and confirmed that regulatory requirements were met in full. With a roll of fewer than 300 pupils spanning nursery to Year 6, classes are likely to be intimate, allowing teaching to be closely tailored as children move towards the 11+ stage.
Head · Mrs Rhian Thornton
School life & ethos
- Religious character
- None
- Boarding
- No
Schools nearby
Eton End School
Slough, South East
Long Close School
Slough, South East
St John's Beaumont School
Windsor, South East
Sikh Heritage Girls School
Slough, South East
Egham Park School Ltd
Egham, South East
The Marist School
Ascot, South East
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A small, non-denominational prep with an "excellent" ISI verdict across the board, well suited to families wanting a close-knit start from the early years through to eleven.
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.
Works alongside your child’s tutor - not instead of them.
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Upton House School 11+: frequently asked questions
Compiled from public data. Last checked 5 June 2026.