Bucks 11 Plus Tests GL-Style Diagnostic
Boys' Grammar School · Amersham

Dr Challoner's Grammar School: Admissions Guide & 11+ Preparation

Dr Challoner's Grammar School is a highly competitive boys' selective grammar school on Chesham Road in Amersham. It is one of the most sought-after grammar schools in Buckinghamshire and consistently attracts a large pool of well-prepared applicants.

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At a Glance: Dr Challoner's (boys)

School typeBoys' Grammar School
LocationAmersham, Buckinghamshire
Entry qualificationStandardised score 121+ on the Secondary Transfer Test
Admissions authorityThe school (in conjunction with TBGS)
Test formatGL Assessment — two 45-minute papers, audio-paced

Admissions & Oversubscription Criteria

The school uses the standard Buckinghamshire admissions criteria. The qualifying score of 121 is essential; places are then allocated by oversubscription criteria in the order: looked-after children, siblings, and distance. The school is consistently oversubscribed and the effective distance cut-off for non-sibling places is among the tightest in the county.

All Buckinghamshire grammar schools share the same entry requirement: a standardised score of 121 or above on the Secondary Transfer Test. Qualification is necessary but not sufficient — at oversubscribed schools, qualified applicants compete for places on the basis of each school's published oversubscription criteria. These are typically ordered as: looked-after children, siblings of current pupils, then distance from the school gate in ascending order. All families should read the individual school's admissions policy (available from the school and via Buckinghamshire Council's admissions portal) rather than relying on general summaries.

Catchment & Location

Challoner's is situated in Amersham Old Town and draws applications from Amersham, Chesham, Gerrards Cross, Beaconsfield, Little Chalfont, and as far as Rickmansworth in Hertfordshire. The school is easily accessible from the Metropolitan and Chiltern railway lines.

Distance Cut-Off

Dr Challoner's is one of the most oversubscribed boys' grammar schools in Buckinghamshire. Qualifying at exactly 121 is typically insufficient for non-sibling applicants from beyond Amersham itself. Families more than 4–5 miles from the school should treat it as a stretch option unless they are well above the qualifying threshold.

Distance cut-offs vary year to year based on the number of qualifying applicants and the proportion who list this school on their SCAF. In years with higher-than-average qualifying rates across Buckinghamshire, the effective catchment distance at popular schools can compress. Families should use any published historical cut-off figures as a guide only — the actual distance for any given year is determined at the point of offer in March.

What Makes Dr Challoner's (boys) Distinctive

Challoner's sits alongside Dr Challoner's High School (girls) in Amersham, effectively providing a paired selective provision for the area. The school has an outstanding academic record and is frequently ranked among the top state schools nationally at GCSE and A-level. Sixth Form students from both Challoner's schools share resources.

The Admissions Process for Dr Challoner's (boys)

There is no separate entrance examination for Dr Challoner's (boys) — entry is based entirely on the Buckinghamshire Secondary Transfer Test result. The process for families applying to this school follows the standard Buckinghamshire grammar school admissions timeline:

June (Year 5): Registration deadline for the Secondary Transfer Test.

September (Year 6): Secondary Transfer Test — all children sit the test at their primary school.

October (Year 6): Results released ('qualified' or 'not qualified').

October–November (Year 6): SCAF deadline — qualified families list grammar school preferences. Include Dr Challoner's (boys) on your SCAF if it is a genuine preference.

1 March (following year): National Offer Day — grammar school place offers released.

Preparation Advice for Dr Challoner's (boys) Applicants

Families targeting Dr Challoner's should prepare ambitiously — the strong performance of the typical qualifying applicant in this area means preparation aimed at a borderline 121 is unlikely to result in a place. Comprehensive preparation across all four GL Assessment domains, with particular emphasis on timing and accuracy, is advisable.

Because Dr Challoner's (boys) is typically oversubscribed, qualifying at the threshold is not sufficient to guarantee a place for families who do not live close to the school. For families in the likely catchment area, qualifying comfortably above 121 reduces the risk of a borderline result that could be questioned in a difficult year. For families outside the typical catchment, qualifying is a prerequisite but the admissions outcome depends on distance — not on how far above 121 a child scores.

What the Four Test Domains Look Like

Regardless of which grammar school a family targets, all applicants must qualify via the same Secondary Transfer Test. The four domains are: Verbal Reasoning (word codes, analogies, compound words, sequences), Non-Verbal Reasoning and Spatial Reasoning (matrices, reflections, rotations, nets, cube views), Mathematical Reasoning (number, fractions, percentages, ratio, algebra, shape, data), and English Comprehension (retrieval, inference, vocabulary in context, author technique). All answers are multiple-choice. The test is delivered with audio timing — a recorded voice announces each section and controls the pace throughout.

Practice with a GL Assessment-style readiness check early in Year 5 identifies which domains need the most work before the September Year 6 test. Domain-specific practice, timed papers, and realistic mock conditions in the summer holidays are the core of effective preparation.

Address: Chesham Road, Amersham, HP6 5HA
Official school website →

Frequently Asked Questions

What is the distance cut-off for Dr Challoner's Grammar School?

The exact cut-off varies year to year. In recent years it has been extremely tight — often under 3 miles for non-sibling applicants. Buckinghamshire Council publishes the precise distance after each admissions round, and this is the most reliable source for planning. The school does not pre-publish a catchment boundary.

Is there a difference between Dr Challoner's Grammar School and Dr Challoner's High School?

Yes. Dr Challoner's Grammar School is a boys-only selective school. Dr Challoner's High School is a girls-only selective school. They are separate schools with separate admission processes, but they share a campus tradition and some Sixth Form resources. Both require the same 121 qualifying score.

Can my son apply to both Challoner's and John Hampden?

Yes. The Buckinghamshire admissions process allows up to three grammar school preferences. Many boys in the Amersham and Chesham areas list Dr Challoner's Grammar School alongside John Hampden Grammar School and one further choice. The schools use the same test, so preparation applies to all of them equally.

Independent educational resource. Not affiliated with The Buckinghamshire Grammar Schools, GL Assessment, or any individual grammar school. Information is for guidance only. Always verify admissions details directly with schools and Buckinghamshire Council.