Chislehurst and Sidcup Grammar School
Hurst Road, Sidcup, DA15 9AG
- Phase
- Secondary
- School type
- Academy converter
- Ages
- 11 to 18
- Gender
- Mixed
- Trust
- CHISLEHURST AND SIDCUP GRAMMAR SCHOOL
- Headteacher
- Mr Nigel Walker
- Admissions policy
- Selective
- Constituency
- Old Bexley and Sidcup
- Setting
- Urban: Nearer to a major town or city
- Capacity
- 1,344
- Pupils on roll
- 1,561
- URN
- 137423
- Local authority
- Bexley
- Website
- School website
- Telephone
- 02083026511
About this school
Chislehurst and Sidcup Grammar School is a secondary academy in Sidcup. It teaches children aged 11 to 18 and has 1,561 pupils on roll.
Ofsted has inspected Chislehurst and Sidcup Grammar School, and its latest judgement is set out below. Where the Department for Education has published them, its results and pupil characteristics appear below. Seeing a school for yourself shows what no page can, so arrange a visit before you apply.
Ofsted judgement
Confirmed by a short inspection, not a full one
Ofsted's most recent visit was a short inspection on 14 December 2022, where inspectors confirmed the school remains Good. The school's last full inspection took place before September 2019, so its area grades are not part of Ofsted's current published data. Older reports are on the school's Ofsted page.
Exam results
Key stage 4 (GCSEs)
| Measure | 2022/23 | 2023/24 | 2024/25 |
|---|---|---|---|
| Pupils at the end of key stage 4 | 191 | 190 | 189 |
| Attainment 8 score | 73.0 | 76.0 | 75.6 |
| Progress 8 score | +0.46 +0.25 to +0.67 | +0.82 +0.61 to +1.03 | - |
| Grade 5 or above in English and maths | 97% | 97.4% | 98.9% |
| Grade 4 or above in English and maths | 99% | 100% | 99.5% |
| Entered the English Baccalaureate | 95% | 97.9% | 95.8% |
| English Baccalaureate average point score | 7.1 | 7.4 | 7.5 |
Progress 8 is paused nationally for the 2024/25 and 2025/26 school years. Those pupils sat no key stage 2 tests during the Covid pandemic, so there is no starting point to measure progress from. A blank figure here is not missing school data.
Trends over time
How Chislehurst and Sidcup Grammar School has moved over recent years against the local and national picture. Every figure is shown in the table beneath its chart.
| Year | This school | Bexley average | England average |
|---|---|---|---|
| 2022/23 | 73 | 44 | 39.8 |
| 2023/24 | 76 | 44.8 | 39.5 |
| 2024/25 | 75.6 | 42 | 39 |
Department for Education KS4 performance data, published school results.
| Year | This school | England average |
|---|---|---|
| 2022/23 | 4.5% | 6.8% |
| 2023/24 | 4.1% | 6.6% |
| 2024/25 | 3.8% | 6.2% |
Department for Education pupil absence data.
| Year | This school |
|---|---|
| 2022/23 | 1,445 |
| 2023/24 | 1,457 |
| 2024/25 | 1,517 |
School census, spring count each academic year.
How Chislehurst and Sidcup Grammar School compares
Chislehurst and Sidcup Grammar School ranked 1st of 16 secondary schools in Bexley for Attainment 8 in 2024/25. Its Attainment 8 score was higher than 99% of England secondary schools that published results in 2024/25. Its absence rate was lower than 89% of England schools in 2024/25.
| School | Attainment 8 (2024/25) | Absence | FSM (6 years) | Pupils | Distance |
|---|---|---|---|---|---|
| This school | 75.6 | 3.8% | 4.8% | 1,561 | — |
| Hurstmere School | 42.1 | 7.2% | 16.9% | 893 | 0.3 miles |
| Cleeve Park School | 39.7 | 8.6% | 34.6% | 994 | 0.7 miles |
| Blackfen School for Girls | 44.1 | 9.8% | 19.4% | 1,324 | 0.9 miles |
| Bexley Grammar School | 74.7 | 5% | 4.2% | 1,504 | 1.4 miles |
| Chislehurst School for Girls | 50.3 | 7% | 21% | 1,227 | 1.4 miles |
Results reflect each school's cohort as much as its teaching, and free school meals share is context, not a judgement. Small gaps between neighbouring schools are rarely meaningful on their own.
School context
From the 2024/25 school census and absence figures.
- Free school meals (last 6 years)
- 4.76%
- English as an additional language
- 10.9%
- Overall absence
- 3.78%
- Persistent absence
- 4.86%
Location
Nearby schools
-
Hurstmere School0.3 miles
Secondary · Sidcup
-
Cleeve Park School0.7 miles
Secondary · Sidcup
-
Blackfen School for Girls0.9 miles
Secondary · Sidcup
-
Bexley Grammar School1.4 miles
Secondary · Welling
-
Chislehurst School for Girls1.4 miles
Secondary · Chislehurst
Other schools in Sidcup
Chislehurst and Sidcup Grammar School ranks 1st of the 5 ranked secondary schools in Sidcup.
- Blackfen School for Girls Secondary
- Cleeve Park School Secondary
- Hurstmere School Secondary
- Kemnal Technology College Secondary
- Birkbeck Primary School Primary
- Burnt Oak Junior School Primary
- Chatsworth Infant School Primary
- Days Lane Primary School Primary
- Holy Trinity Lamorbey Church of England School Primary
- Hope Community School Primary
- Longlands Primary School Primary
- Orchard Primary School Primary
Common questions
- What ages does Chislehurst and Sidcup Grammar School teach?
- Chislehurst and Sidcup Grammar School teaches children aged 11 to 18. It is a secondary school in Sidcup.
- Who is the headteacher of Chislehurst and Sidcup Grammar School?
- The headteacher of Chislehurst and Sidcup Grammar School is Mr Nigel Walker, as recorded in the Department for Education's register of schools.
- Has Chislehurst and Sidcup Grammar School been inspected?
- Ofsted has inspected Chislehurst and Sidcup Grammar School, and its latest judgement is set out in the inspection section on this page, with the framework and the date it was made.
- How many pupils are at Chislehurst and Sidcup Grammar School?
- Chislehurst and Sidcup Grammar School has 1,561 pupils on roll, teaching children aged 11 to 18.
- Is Chislehurst and Sidcup Grammar School full?
- Chislehurst and Sidcup Grammar School has capacity for 1,344 pupils and 1,561 on roll (116%), so it is at or above its published capacity. Places are allocated through the local authority's admissions process, so capacity alone does not tell you whether a place is available.
- Is Chislehurst and Sidcup Grammar School a faith school?
- No. Chislehurst and Sidcup Grammar School has no designated religious character.
- Is Chislehurst and Sidcup Grammar School a selective school?
- Yes. Chislehurst and Sidcup Grammar School is recorded as Selective in the schools register, so entry involves selection.
- Is Chislehurst and Sidcup Grammar School part of an academy trust?
- Chislehurst and Sidcup Grammar School is part of CHISLEHURST AND SIDCUP GRAMMAR SCHOOL. Schools in a trust or federation share leadership and governance, but each keeps its own inspection record and results.
- How have Chislehurst and Sidcup Grammar School's results changed over recent years?
- Its Attainment 8 score was 73 in 2022/23 and 75.6 in 2024/25. The year-by-year figures, alongside local and national averages, are charted in the trends section on this page.
- How does Chislehurst and Sidcup Grammar School compare with other schools in Bexley?
- Chislehurst and Sidcup Grammar School ranked 1st of 16 secondary schools in Bexley for Attainment 8. Its Attainment 8 score was higher than 99% of England secondary schools that published results in 2024/25. Its absence rate was lower than 89% of England schools in 2024/25. Results reflect each cohort as well as the school, so treat rankings as a starting point.
- What is Chislehurst and Sidcup Grammar School's absence rate?
- Chislehurst and Sidcup Grammar School's overall absence rate is 3.8% in the latest published census, at or below the England average of 6.2%.
- What are Chislehurst and Sidcup Grammar School's exam results?
- Where the Department for Education has published them, Chislehurst and Sidcup Grammar School's key stage results are shown in the results section on this page, with the last three years so you can see the trend rather than a single year.
School details come from the Department for Education's Get Information About Schools register. Inspection outcomes come from Ofsted, and exam results from the Department for Education's school performance service. This page was last updated on 1 July 2026.