Dr Challoner's Grammar School
- Secondary
- Academy converter
- Ages 11 to 18
- Boys
- Selective
URN 136419 · Buckinghamshire · DR CHALLONER'S GRAMMAR SCHOOL
Inspection
Ofsted management information, as at 30 September 2026.
Latest graded inspection
5 November 2019Overall effectiveness
Outstanding
- Quality of education
- Outstanding
- Behaviour and attitudes
- Outstanding
- Personal development
- Outstanding
- Leadership and management
- Outstanding
- Sixth form provision
- Outstanding
- Safeguarding is effective
- Yes
Full inspection of a previously exempt school
Under the earlier framework, inspections gave an overall effectiveness grade.
Ungraded inspection
6 November 2024“Standards maintained”
An ungraded inspection checks that the school is still at the standard of its last graded inspection. It does not give a new grade.
Read the reports on Ofsted’s website. Source: Ofsted, State-funded school inspections and outcomes: management information.
Attendance
Against Buckinghamshire and England, secondary schools.
Overall absence
2024/255.2%
- Buckinghamshire
- 8.2%
- England
- 8.4%
3.2 percentage points lower than England.
Show the figures as a table
| Year | This school | Buckinghamshire | England |
|---|---|---|---|
| 2017/18 | 3.9% | Not published | 5.5% |
| 2018/19 | 4.0% | Not published | 5.5% |
| 2020/21 | 3.9% | 4.9% | 5.5% |
| 2021/22 | 5.8% | 8.7% | 9.0% |
| 2022/23 | 5.4% | 8.7% | 9.0% |
| 2023/24 | 5.5% | 8.5% | 8.9% |
| 2024/25 | 5.2% | 8.2% | 8.4% |
Sessions missed for any reason, as a share of all possible sessions in the school year. Source: Department for Education, Explore Education Statistics, Pupil absence in schools in England, 2024/25.
Persistent absence
2024/2514.2%
- Buckinghamshire
- 23.3%
- England
- 23.4%
9.2 percentage points lower than England.
Show the figures as a table
| Year | This school | Buckinghamshire | England |
|---|---|---|---|
| 2017/18 | 6.4% | Not published | 13.9% |
| 2018/19 | 8.6% | Not published | 13.7% |
| 2020/21 | 9.9% | 12.5% | 14.8% |
| 2021/22 | 19.9% | 28.4% | 27.7% |
| 2022/23 | 10.7% | 26.8% | 26.5% |
| 2023/24 | 14.6% | 25.9% | 25.6% |
| 2024/25 | 14.2% | 23.3% | 23.4% |
Pupils who missed 10% or more of their possible sessions, as a share of pupils. Source: Department for Education, Explore Education Statistics, Pupil absence in schools in England, 2024/25.
Severe absence
2024/250.1%
- Buckinghamshire
- 3.1%
- England
- 3.9%
3.8 percentage points lower than England.
Show the figures as a table
| Year | This school | Buckinghamshire | England |
|---|---|---|---|
| 2017/18 | 0.1% | Not published | 1.2% |
| 2018/19 | 0.4% | Not published | 1.3% |
| 2020/21 | 0.2% | 1.0% | 1.5% |
| 2021/22 | 0.2% | 2.0% | 2.7% |
| 2022/23 | 0.3% | 2.9% | 3.4% |
| 2023/24 | 0.2% | 3.3% | 3.8% |
| 2024/25 | 0.1% | 3.1% | 3.9% |
Pupils who missed 50% or more of their possible sessions, as a share of pupils. Source: Department for Education, Explore Education Statistics, Pupil absence in schools in England, 2024/25.
Suspensions and permanent exclusions
Against Buckinghamshire and England, secondary schools.
Suspensions per 100 pupils
2024/252.63
- Buckinghamshire
- 11.48
- England
- 21.24
18.61 lower than England.
Show the figures as a table
| Year | This school | Buckinghamshire | England |
|---|---|---|---|
| 2017/18 | 3.26 | Not published | 10.13 |
| 2018/19 | 2.51 | Not published | 10.75 |
| 2019/20 | 1.18 | Not published | 7.43 |
| 2020/21 | 1.32 | Not published | 8.48 |
| 2021/22 | 1.62 | 6.51 | 13.96 |
| 2022/23 | 4.53 | 9.24 | 18.90 |
| 2023/24 | 2.26 | 10.92 | 22.61 |
| 2024/25 | 2.63 | 11.48 | 21.24 |
Suspensions in the school year for every 100 pupils on roll. One pupil can be suspended more than once. Source: Department for Education, Explore Education Statistics, Suspensions and permanent exclusions in England, 2024/25.
Permanent exclusions per 100 pupils
2024/250.00
- Buckinghamshire
- 0.07
- England
- 0.23
0.23 lower than England.
Show the figures as a table
| Year | This school | Buckinghamshire | England |
|---|---|---|---|
| 2017/18 | 0.00 | Not published | 0.20 |
| 2018/19 | 0.07 | Not published | 0.20 |
| 2019/20 | 0.00 | Not published | 0.13 |
| 2020/21 | 0.00 | Not published | 0.10 |
| 2021/22 | 0.00 | 0.03 | 0.16 |
| 2022/23 | 0.00 | 0.07 | 0.22 |
| 2023/24 | 0.00 | 0.09 | 0.25 |
| 2024/25 | 0.00 | 0.07 | 0.23 |
Permanent exclusions in the school year for every 100 pupils on roll. Source: Department for Education, Explore Education Statistics, Suspensions and permanent exclusions in England, 2024/25.
Key stage 4 results
Against Buckinghamshire and England, secondary schools.
Attainment 8
2025/26 (provisional)76.2
- Buckinghamshire
- 55.3
- England
- 47.4
28.8 higher than England.
Show the figures as a table
| Year | This school | Buckinghamshire | England |
|---|---|---|---|
| 2021/22 | Not published | 58.7 | 49.8 |
| 2022/23 | Not published | 55.7 | 47.2 |
| 2023/24 | 77.5 | 54.9 | 46.9 |
| 2024/25 | 73.9 | 54.8 | 47.1 |
| 2025/26 (provisional) | 76.2 | 55.3 | 47.4 |
The average of pupils' points across eight GCSE-level qualifications, with English and maths counted twice. Source: Department for Education, Explore Education Statistics, Key stage 4 performance, 2025/26.
English and maths: grade 4 or above
2025/26 (provisional)100%
- Buckinghamshire
- 77%
- England
- 66%
34 percentage points higher than England.
Show the figures as a table
| Year | This school | Buckinghamshire | England |
|---|---|---|---|
| 2021/22 | Not published | 81% | 70% |
| 2022/23 | Not published | 77% | 67% |
| 2023/24 | 100% | 77% | 67% |
| 2024/25 | 98% | 76% | 66% |
| 2025/26 (provisional) | 100% | 77% | 66% |
Pupils at the end of key stage 4 with grade 4 or above in both English and maths. Source: Department for Education, Explore Education Statistics, Key stage 4 performance, 2025/26.
English and maths: grade 5 or above
2025/26 (provisional)99%
- Buckinghamshire
- 62%
- England
- 48%
51 percentage points higher than England.
Show the figures as a table
| Year | This school | Buckinghamshire | England |
|---|---|---|---|
| 2021/22 | Not published | 66% | 51% |
| 2022/23 | Not published | 61% | 46% |
| 2023/24 | 100% | 61% | 47% |
| 2024/25 | 96% | 60% | 47% |
| 2025/26 (provisional) | 99% | 62% | 48% |
Pupils at the end of key stage 4 with grade 5 or above in both English and maths. Source: Department for Education, Explore Education Statistics, Key stage 4 performance, 2025/26.
Pupils
Against Buckinghamshire and England, secondary schools.
Eligible for free school meals
2024/252.4%
- Buckinghamshire
- 13.6%
- England
- 25.8%
23.4 percentage points lower than England.
Show the figures as a table
| Year | This school | Buckinghamshire | England |
|---|---|---|---|
| 2021/22 | 2.1% | 9.6% | 20.9% |
| 2022/23 | 2.6% | 11.2% | 22.7% |
| 2023/24 | 2.8% | 12.3% | 24.1% |
| 2024/25 | 2.4% | 13.6% | 25.8% |
Pupils known to be eligible for free school meals on census day in January. Source: Department for Education, Explore Education Statistics, Schools, pupils and their characteristics, 2024/25.
SEN support
2024/2514.3%
- Buckinghamshire
- 10.9%
- England
- 13.4%
0.9 percentage points higher than England.
Show the figures as a table
| Year | This school | Buckinghamshire | England |
|---|---|---|---|
| 2021/22 | 6.3% | 8.6% | 11.9% |
| 2022/23 | 5.8% | 9.4% | 12.4% |
| 2023/24 | 12.5% | 10.1% | 12.9% |
| 2024/25 | 14.3% | 10.9% | 13.4% |
Pupils receiving special educational needs support without an education, health and care plan. Source: Department for Education, Explore Education Statistics, Schools, pupils and their characteristics, 2024/25.
Education, health and care plan
2024/250.8%
- Buckinghamshire
- 2.9%
- England
- 3.1%
2.3 percentage points lower than England.
Show the figures as a table
| Year | This school | Buckinghamshire | England |
|---|---|---|---|
| 2021/22 | 0.7% | 2.2% | 2.2% |
| 2022/23 | 0.9% | 2.5% | 2.4% |
| 2023/24 | 0.6% | 2.8% | 2.7% |
| 2024/25 | 0.8% | 2.9% | 3.1% |
Pupils with an education, health and care plan. Source: Department for Education, Explore Education Statistics, Schools, pupils and their characteristics, 2024/25.
First language other than English
2024/2517.4%
- Buckinghamshire
- 19.2%
- England
- 19.2%
1.8 percentage points lower than England.
Show the figures as a table
| Year | This school | Buckinghamshire | England |
|---|---|---|---|
| 2021/22 | 11.8% | 18.4% | 17.5% |
| 2022/23 | 14.3% | 18.9% | 18.1% |
| 2023/24 | 16.4% | 19.2% | 18.6% |
| 2024/25 | 17.4% | 19.2% | 19.2% |
Pupils whose first language is known or believed to be other than English. Source: Department for Education, Explore Education Statistics, Schools, pupils and their characteristics, 2024/25.
Teachers
Against Buckinghamshire and England, secondary schools.
Pupils per qualified teacher
2025/2618.5
- Buckinghamshire
- 18.5
- England
- 17.3
1.2 higher than England.
Show the figures as a table
| Year | This school | Buckinghamshire | England |
|---|---|---|---|
| 2017/18 | 19.7 | 18.2 | 16.5 |
| 2018/19 | 19.8 | 18.5 | 16.8 |
| 2019/20 | 19.4 | 18.9 | 17.2 |
| 2020/21 | 19.2 | 18.5 | 17.1 |
| 2021/22 | 17.8 | 18.5 | 17.1 |
| 2022/23 | 18.5 | 18.8 | 17.2 |
| 2023/24 | 18.0 | 19.0 | 17.4 |
| 2024/25 | 18.1 | 19.1 | 17.3 |
| 2025/26 | 18.5 | 18.5 | 17.3 |
Full-time equivalent pupils for each full-time equivalent qualified teacher. Source: Department for Education, Explore Education Statistics, School workforce in England, 2025/26.
Teacher sickness absence
2024/253.5 days
- Buckinghamshire
- 4.5 days
- England
- 5.0 days
1.5 days lower than England.
Compared with all state-funded schools: DfE publishes this measure for all schools, not by phase.
Show the figures as a table
| Year | This school | Buckinghamshire | England |
|---|---|---|---|
| 2017/18 | 2.3 days | 3.0 days | 4.0 days |
| 2018/19 | 1.9 days | 3.2 days | 4.0 days |
| 2019/20 | Not published | Not published | Not published |
| 2020/21 | 4.1 days | 3.1 days | 3.9 days |
| 2021/22 | 5.9 days | 6.4 days | 6.3 days |
| 2022/23 | 4.3 days | 4.7 days | 5.2 days |
| 2023/24 | 5.3 days | 4.9 days | 5.3 days |
| 2024/25 | 3.5 days | 4.5 days | 5.0 days |
Days lost to sickness absence in the school year, averaged across all teachers. Source: Department for Education, Explore Education Statistics, School workforce in England, 2024/25.
Finance
Academies report their accounts as part of their trust, so DfE publishes no school-level balance for this school. The trust’s figures are in DfE’s Financial Benchmarking and Insights Tool.
See this school in the Financial Benchmarking and Insights Tool
About the school
- Pupils on roll
- 1,384
- Capacity
- 1,356
- Type
- Academy converter
- Phase
- Secondary
- Age range
- 11 to 18
- Sixth form
- Has a sixth form
- Admissions
- Selective
- Gender
- Boys
- Trust
- DR CHALLONER'S GRAMMAR SCHOOL
- Opened
- 1 January 2011
- Setting
- Urban: Nearer to a major town or city
- Constituency
- Chesham and Amersham
- Deprivation of the area (IDACI)
- Decile 10 of 10 (1 is the most deprived tenth of neighbourhoods)
Address: Chesham Road, Amersham, Buckinghamshire, HP6 5HA
Website: www.challoners.com
Telephone: 01494787500
Sources and corrections
Every figure on this page names its source and period. This release was built on 20 October 2026.
- Department for Education: Get Information about Schools: establishment data (GIAS establishment extract 2026-10-20)
- Ofsted: State-funded school inspections and outcomes: management information (Latest inspections as at 2026-09-30; All inspections, 2018/19; All inspections, 2019/20; All inspections, 2020/21; All inspections, 2021/22; All inspections, 2022/23; All inspections, 2023/24; All inspections, 2024/25; All inspections, 2025/26)
- Department for Education, Explore Education Statistics: Pupil absence in schools in England (absence-3term-school, 2013/14 to 2024/25 [pinned data set id])
- Department for Education, Explore Education Statistics: Suspensions and permanent exclusions in England (exc-school, 2006/07 to 2024/25 [pinned data set id]; exc-ap-school, 2013/14 to 2024/25 [pinned data set id]; exc-geography, 2006/07 to 2024/25 [pinned data set id]; exc-ap-geography, 2013/14 to 2024/25 [pinned data set id])
- Department for Education, Explore Education Statistics: Key stage 2 attainment (ks2-school, 2022/23 to 2024/25 [pinned data set id]; ks2-geography, 2015/16 to 2025/26 [pinned data set id])
- Department for Education, Explore Education Statistics: Key stage 4 performance (ks4-school, 2023/24 to 2025/26 [pinned data set id]; ks4-geography, 2018/19 to 2025/26 [pinned data set id])
- Department for Education, Explore Education Statistics: Schools, pupils and their characteristics (School census, January 2022 (performance tables, 2021 to 2022); School census, January 2023 (performance tables, 2022 to 2023); School census, January 2024 (performance tables, 2023 to 2024); School census, January 2025 (performance tables, 2024 to 2025))
- Department for Education, Explore Education Statistics: School workforce in England (ptr-school, 2010/11 to 2025/26 [pinned data set id]; ptr-geography, 2010/11 to 2025/26 [pinned data set id]; sickness-school, 2009/10 to 2024/25 [pinned data set id]; sickness-geography, 2009/10 to 2024/25 [pinned data set id])
- Ministry of Housing, Communities and Local Government: English indices of deprivation 2025: Income Deprivation Affecting Children Index (English indices of deprivation 2025, File 7 (2021 LSOAs))
Spotted something wrong? Report a correction with the school’s URN (136419). Fixes go out in the next weekly release.