St John's Preparatory and Senior School
“Res Ipsa Loquitur”
(The thing speaks for itself)
St John's Preparatory and Senior School is a co-educational independent day school for pupils aged 3 to 19, situated in Potters Bar, Hertfordshire. Set within 28 acres of green belt countryside, the school is arranged across two sites, with the senior department housed in a Grade II listed building. The ethos focuses on developing well-rounded individuals, combining academic rigour with a supportive social environment. Notable features include a compulsory supervised prep hour for pupils aged seven and above, alongside facilities such as a large sports hall and extensive outdoor space.
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Last updated on 12 March 2026 (not all data elements were necessarily updated on this date)
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Fees (Day Pupils)
Vs. National Average
-25.6%
St John's Preparatory and Senior School's fees are 25.6% lower than the national average.
Vs. County Average
-18.0%
St John's Preparatory and Senior School's fees are 18.0% lower than the county average.
Based on 24 schools in Hertfordshire and 259 nationally.
Note: based on core termly fees including mandatory lunch and learning materials charges but excluding any discounts or other additional charges for extra-curriculars, registration, etc. Please check the schools' official websites for full fees and charges.
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Details
Contact Information
Address
St John's Preparatory and Senior School, The Ridgeway, Potters Bar, Hertfordshire, EN6 5QT
(Open in Maps)General Enquiries
01707 657294Admissions
020 8366 0035