100%
GCSE 9–4 · 2024/25
99%
GCSE 5+ · 2024/25
75.6
Attainment 8 · 2024/25
96%
EBacc entry · 2024/25
1412.1
EBacc APS · 2024/25
1,517
Pupils · 2024/25
11%
EAL · 2024/25
5%
Persistent abs. · 2024/25
Ofsted inspection
Good
Ofsted inspection · 14/12/2022
Inadequate
Requires improvement
Good
Outstanding
Local authorityBexley
PhaseSecondary with sixth form with sixth form
School typeAcademy
Pupil : teacher ratio19.1:1
AdmissionsSelective
Religious characterDoes not apply
StatusOpen
Overview of Chislehurst and Sidcup Grammar School · Secondary with sixth form · Bexley
How does this school perform?
Key Stage 4 · 2024/25 · trend since 2016/17
GCSE 9–4 incl. Eng & maths
100%
-1pp
100%99%98%
'19'22'23'24'25
'25 · 100%
GCSE 5+ incl. Eng & maths
99%
+2pp
99%97%96%
'19'22'23'24'25
'25 · 99%
Attainment 8
75.6
-0.4
76.074.072.1
'19'22'23'24'25
'25 · 75.6
EBacc entry
96%
-2pp
98%95%93%
'19'22'23'24'25
'25 · 96%
EBacc APS
1412.1
+7.4
1465.01412.91360.8
'19'22'23'24'25
'25 · 1412.1
Sixth form
Key Stage 5 · 2024/25 · trend since 2016/17
A-level APS
41.2
-0.3
45.039.333.5
'19'22'23'24'25
'25 · 41.2
A-level value added
+0.02
0
0.0-0.1-0.2
'17'18'19'24'25
'25 · 0.0
AAB+ in facilitating subjects
27%
-3pp
30%21%12%
'19'22'23'24'25
'25 · 27%
Average A-level grade
B
0
ABC+
'19'22'23'24'25
'25 · B
Pupils & context
2024/25
Pupils on roll
1,517
Pupil : teacher ratio
19.1
Workforce data · 2025/26
EAL
11%
FSM eligible
5%
SEN
1%
Overall absence
4%
Persistent absence
5%
Contact
Address
Hurst Road, Sidcup, DA15 9AG
Local authority
Bexley
Website
Telephone
Email
—
History
All years · Historical DfE data by academic year
Secondary — Key Stage 4
GCSE attainment and Progress 8 — how pupils progressed from KS2 to KS4.
| Year | GCSE 9–4 | GCSE 5+ | Attainment 8 | Progress 8 | EBacc entry | EBacc APS | EBacc lang entry | Cohort |
|---|---|---|---|---|---|---|---|---|
| 2024/25 | 100% | 99% | 75.6 | Not applicable | 96% | 1412.1 | 96% | 1,517 |
| 2023/24 | 100% | 97% | 76.0 | +0.82 | 98% | 1404.7 | 98% | 1,457 |
| 2022/23 | 99% | 97% | 73.0 | +0.46 | 95% | 1360.8 | 95% | 1,445 |
| 2021/22 | 100% | 97% | 75.0 | +0.41 | 95% | 1465.0 | 96% | 1,440 |
| 2018/19 | 98% | 96% | 72.1 | +0.43 | 93% | 1395.2 | 93% | 1,409 |
| 2017/18 | 98% | 95% | 70.3 | +0.39 | 87% | 1236.9 | 99% | 1,379 |
| 2016/17 | 99% | 93% | 67.9 | +0.28 | 81% | — | 98% | 1,361 |
Sixth form — Key Stage 5
| Year | A-level APS | Avg grade | VA progress | AAB+ | Cohort |
|---|---|---|---|---|---|
| 2024/25 | 41.2 | B | +0.02 | 27% | 261 |
| 2023/24 | 41.5 | B | -0.01 | 30% | 243 |
| 2022/23 | 40.8 | B | — | 26% | 250 |
| 2021/22 | 45.0 | A- | — | 30% | 230 |
| 2018/19 | 33.5 | C+ | -0.19 | 12% | 215 |
| 2017/18 | 34.9 | C+ | -0.17 | 19% | 206 |
| 2016/17 | 35.6 | B- | -0.10 | 18% | 210 |
Pupils & absence
| Year | Pupils | Pupil:teacher | SEN | EAL | FSM ever | Absence | Persistent absence |
|---|---|---|---|---|---|---|---|
| 2024/25 | 1,517 | 19.0 | 1% | 11% | 5% | 4% | 5% |
| 2023/24 | 1,457 | 17.8 | 1% | 9% | 4% | 4% | 7% |
| 2022/23 | 1,445 | 17.5 | 1% | 9% | 5% | 4% | 8% |
| 2021/22 | 1,440 | 18.0 | 1% | 8% | 5% | 5% | 7% |
| 2020/21 | 1,433 | 18.1 | 1% | 7% | 4% | — | — |
| 2018/19 | 1,409 | 17.4 | 1% | 6% | 7% | 3% | 5% |
| 2017/18 | 1,379 | 16.6 | 2% | 5% | 7% | 3% | 3% |
| 2016/17 | 1,361 | 16.2 | 2% | 5% | 7% | 4% | 4% |
School performance data © Crown copyright. Source: Department for Education.