Schools / Dr Challoner's High School
Dr Challoner's High School is a selective grammar school for girls in Little Chalfont, Buckinghamshire, educating around 1,400 pupils aged 11 to 18. Entry to Year 7 is through the Buckinghamshire Secondary Transfer Test, set by GL Assessment, in which a standardised score of 121 or above qualifies a child for a grammar school place.
Athena holds admission-route records for Dr Challoner's High School. They are shown by entry cycle below; where the provider changes between cycles, each cycle keeps its own recorded exam.
Set by GL Assessment
Buckinghamshire Secondary Transfer Test (STT), provided by GL Assessment: two multiple-choice papers (verbal skills 50%, mathematics 25%, non-verbal/spatial reasoning 25%); qualifying standardised score 121.
8520 published practice questions tagged for this exam
Route record: verified · Athena schools expansion research 2026-10-27
Set by GL Assessment
Buckinghamshire Secondary Transfer Test (STT), provided by GL Assessment: two multiple-choice papers (verbal skills 50%, mathematics 25%, non-verbal/spatial reasoning 25%); qualifying standardised score 121.
8520 published practice questions tagged for this exam
Route record: verified · Athena schools expansion research 2026-10-27
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Test: Mid-September of Year 6 (September 2027)
Results: Mid-October 2027 — Buckinghamshire Council publishes Secondary Transfer Test results
Offers: National Offer Day — Wednesday 1 March 2028
When to start preparing: Start preparing in the spring term of Year 5 (the standing rule: about 18 months before the test).
General guidance: this follows the rule of thumb of starting about 18 months before the test. It is not the school's own published advice.
Source: official admissions information · checked 2026-10-28
Test: Mid-September of Year 6 (September 2026)
Results: Mid-October 2026 — Buckinghamshire Council publishes Secondary Transfer Test results
Offers: National Offer Day — Monday 1 March 2027
When to start preparing: Start preparing in the spring term of Year 5 (the standing rule: about 18 months before the test).
General guidance: this follows the rule of thumb of starting about 18 months before the test. It is not the school's own published advice.
Source: official admissions information · checked 2026-10-28
Catchment applies
Admission is run by Buckinghamshire Council. A child must first reach the Secondary Transfer Test qualifying score of 121; a higher score brings no further advantage. Places are then allocated under the council’s oversubscription rules: looked-after and previously looked-after children first, then children living in the school’s catchment area (some schools also operate a sibling tier), and then by straight-line distance.
| Entry year | Qualifying score | Notes & source |
|---|---|---|
| 2026 | Standardised Secondary Transfer Test Score (STTS) of 121 or above | Buckinghamshire consortium figure (Buckinghamshire Council): 3,648 pupils qualified for September 2026 entry, for 2,369 grammar places across the county’s 13 grammar schools; around 10,000 children sit the test each year. The same 121 threshold applies at every Buckinghamshire grammar school; score is not used to rank qualified applicants. Source: official source · checked 2026-10-28 |
| 2024 | Standardised Secondary Transfer Test Score (STTS) of 121 or above | Buckinghamshire consortium figure (Buckinghamshire Council): 3,591 qualified applicants for 2,344 grammar places across the county’s 13 grammar schools. The same 121 threshold applies at every Buckinghamshire grammar school; score is not used to rank qualified applicants. Source: official source · checked 2026-10-28 |
GCSE: Attainment 8 score 79.1; 99.5% of pupils achieved grade 9-5 or above in English and maths GCSEs
DfE performance tables
A level: Average point score per A level entry 45.67 (average grade A-); 40.7% of A level students achieved AAB or higher
DfE performance tables
Source: official source · checked 2026-10-28
GCSE: Attainment 8 score 78.2; 99.4% of pupils achieved grade 9-5 or above in English and maths GCSEs
DfE performance tables
A level: Average point score per A level entry 44.89 (average grade B+)
DfE performance tables
Source: official source · checked 2026-10-28
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