our view
The school is something of a Tardis and behind its compact Victorian frontage is an extensive site with a large garden and independent buildings for nursery, pre-prep and prep. Updating and extending was one of the previous head’s primary
Data profile
John Lyon School Prep
Independent co-ed prep school in Harrow for ages 2–13, day or boarding. Selective entry, other ethos, top-tier London fees.
- Rank #280
- ISI Excellent
- Fees £53.7k/yr
- co-ed
- both
- Harrow
03 · Module
Entry points & fees
Ages, deadlines and annual fees per route.
| Entry | Year | Places | Assessment | Day fee (max) | Boarding fee (max) |
|---|---|---|---|---|---|
| 11+MAIN | Year 7 | — | — | £53.7k | — |
| 13+ | Year 9 | — | — | £53.7k | — |
| 4+MAIN | Reception | — | — | £53.7k | — |
04 · Module
Houseroom Index
Composite score blending owned data with external consensus.
Index score
88
/ 100
National rank #280
Academic70
Destinations60
Future-ready62
Pastoral95
Value-add60
Access & breadth55
Parent70
External consensus70
05 · Module
Inspections
Latest inspection rating and report.
ISI
Excellent
Inspected 2022-01-01
07 · Module
Editorial verdict
Houseroom's view of the school.
head
Head Mrs Sonal Chatrath Since January 2024, Sonal Chatrath, previously deputy head academic at Danes Hill School in Surrey, where she worked her way up from director of learning support via assistant deputy head academic. Before that, she was head of prep at Manor House
teaching
This is an independent school and therefore does not have Key Stage 2 SATs results. While some independent schools choose to sit SATs, they are not required to do so and the UK government does not collect or publish their results. [Find out more](/uk-schools/advice/our-school-data-explained#results-primary). ### Teaching & learning 18:1 Pupil to teacher ratio View all data 18 Average class sizes View all data Pupils 235 Number of pupils View all data
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