About the school
Dr Challoner's High School (DCHS) is a selective grammar school for girls aged 11 to 18, located on Cokes Lane in Little Chalfont, Buckinghamshire, South East. With around 1,350 pupils, it is consistently one of the top state schools in Buckinghamshire and the country, rated "Outstanding" by Ofsted and renowned for academic progress.
The school was founded in 1962, opening on its Little Chalfont site, when it was created from the division of the original Dr Challoner's Grammar School to meet rising demand for girls' grammar places. It gained academy status in 2011 and has expanded over the years with a sports hall, performing arts suite and a dedicated Sixth Form Centre.
Dr Challoner's High School uses the Buckinghamshire Secondary Transfer Test (STT) to select pupils for Year 7, and is a member of The Buckinghamshire Grammar Schools (TBGS), which manages the shared test. The school is consistently oversubscribed, which makes focused preparation valuable for families seeking a place.
School type
Girls' Grammar (Selective)
Exam date
Thursday 10th September 2026 (for September 2027 entry)
Exam board
Buckinghamshire STT (GL Assessment)
Address
Cokes Lane, Little Chalfont, Amersham, Buckinghamshire, HP7 9QB
Age range
11–18 (Years 7–13)
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Admissions information
The Dr Challoner's High School entrance test is administered through the Buckinghamshire Secondary Transfer Test (STT) system. Here is everything you need to know about the admissions process and exam structure.
Dr Challoner's High School is one of the 13 schools in The Buckinghamshire Grammar Schools (TBGS) consortium, all of which use the Buckinghamshire Secondary Transfer Test (STT). The exam board is GL Assessment and the test is administered by Buckinghamshire Council as part of its Coordinated Admissions Scheme. Entry is on the basis of academic ability.
The STT consists of two multiple-choice papers, each lasting approximately 45 to 60 minutes with a short break between them. One paper covers comprehension, technical English and verbal reasoning; the other covers maths, non-verbal reasoning and spatial reasoning. Scores are age-standardised and weighted 50% verbal and 25% each for numerical and non-verbal ability. For the September 2027 entry the main test is on Thursday 10 September 2026, with a practice test on Tuesday 8 September 2026.
Children at state-funded Buckinghamshire primary schools are entered for the STT automatically. Families whose children attend a primary school outside Buckinghamshire must register online; for September 2027 entry, registration opens at 10am on 1 May 2026 and closes at 3pm on 2 June 2026. Families must also submit their Local Authority Common Application Form (CAF), naming the school, by 31st October.
STT results are released to parents in October 2026, ahead of the 31st October application deadline, with allocations made on National Offer Day on 1st March 2027. A standardised score of 121 is the qualifying threshold for consideration; achieving it does not guarantee a place, as the school applies its oversubscription criteria where demand exceeds places.
Key admissions details
Dr Challoner's High School has a Published Admission Number of 180 places for Year 7, with around 1,350 pupils on roll across the school. Up to 12 of these places are made available to girls in catchment who are in receipt of Pupil Premium (or looked-after) and achieve a standardised score of at least 115. The school is consistently oversubscribed, so a qualifying STT score combined with the school's admissions criteria determines who is offered a place.
Dr Challoner's High School operates a catchment area covering Amersham, Chalfont St Giles, Chalfont Common, Chesham, Gerrards Cross, Prestwood, and Great Missenden. Entry is based first on a qualifying STT score, where qualifying applicants exceed places; priority follows looked-after children, Pupil Premium in catchment, daughters of staff, catchment residence, siblings, and then straight-line distance from the school. Applicants wishing to be considered under catchment rules must complete the school's Supplementary Information Form (SIF).
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Dr Challoner's High School was founded in 1962, created from the division of the original Dr Challoner's Grammar School to meet growing demand for girls' grammar places. It gained academy status in 2011 and today educates around 1,350 girls aged 11 to 18, including a sixth form.
Dr Challoner's High School has a Published Admission Number of 180 places for Year 7, with up to 12 places reserved for girls in the catchment who are in receipt of Pupil Premium and meet a standardised score of at least 115. Demand is very high, and the school is regularly oversubscribed, making thorough preparation for the Buckinghamshire Secondary Transfer Test essential.
Dr Challoner's High School uses the Buckinghamshire Secondary Transfer Test. It consists of two multiple-choice papers covering comprehension and verbal reasoning in one and maths, non-verbal reasoning and spatial reasoning in the other, weighted 50% verbal and 25% each for numerical and non-verbal. The test is sat in September of Year 6.
Dr Challoner's High School operates a catchment area covering Amersham, the Chalfonts, Chesham, Gerrards Cross, Prestwood and Great Missenden. Entry is based first on achieving the qualifying STT score, but where the school is oversubscribed, catchment and distance become deciding factors, so proximity matters.
Children at Buckinghamshire state primary schools are registered automatically. Families outside Buckinghamshire must register online; for September 2027 entry this opens at 10 am on 1 May 2026 and closes at 3 pm on 2 June 2026. The Common Application Form, naming the school, must be submitted to your Local Authority by 31st October.
Yes. Dr Challoner's High School offers a wide range of extracurricular clubs and societies, alongside strong music, drama, sport, and community and charity programmes, supporting girls to develop leadership and teamwork skills beyond the classroom.
Yes, all our tuition is available both in-person at our Edgbaston, Birmingham centre and online via live video sessions. Online tuition gives families across Buckinghamshire and beyond access to our expert tutors without the need to travel. The quality and personalisation of sessions is identical in both formats.
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