John Lyon School Prep
Harrow, Harrow, Greater London · HA1 1RX
Set in Harrow, John Lyon School Prep is a small, mixed independent school of around 235 pupils, inter- and non-denominational in character and inspected by the ISI. Its modest size is reflected in a close community feel, though the pupil-to-teacher ratio of roughly 18 sits at the higher end for the independent sector. The school is led by Head Mrs Sonal Chatrath and offers 11+ entry. It will suit families looking for a non-denominational day school within the wider John Lyon foundation.
235
Pupils
£20,370
Day fees / yr
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Open in Google Maps ↗Overview & data
- Gender
- Mixed
- Type
- independent (fee-paying) school
- Pupils
- 235
- Pupil:teacher ratio
- 18
- Location
- Harrow, Harrow, Greater London
- Website
- https://www.johnlyon.org/
Headteacher
Head Mrs Sonal Chatrath
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Teaching & academics
As a preparatory school, John Lyon focuses on building solid foundations ahead of 11+ entry. Teaching is overseen within an ISI-inspected framework, and the ratio of around 18 pupils per teacher means class sizes are larger than at some smaller independents.
Ethos & heritage
- Religious character
- Inter- / non- denominational
- Boarding
- No
Money matters
- Day fees (per year)
- £17,901 - £20,370
A small number of means-tested bursaries, with priority given to armed forces, emergency services and teachers
Inspection reports
The last word
A small, mixed prep in Harrow for families who value a non-denominational setting and a clear path through 11+ entry. A limited number of means-tested bursaries give priority to the children of armed forces, emergency services and teachers.
The Passmate verdict
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John Lyon School Prep 11+: frequently asked questions
Where is John Lyon School Prep located?
John Lyon School Prep is located at Harrow, HA1 1RX.
What type of school is John Lyon School Prep?
John Lyon School Prep is an independent (fee-paying) school in Greater London.
How many pupils attend John Lyon School Prep?
John Lyon School Prep has approximately 235 pupils on roll.
Compiled from public data. Last checked June 2026.