54%
GCSE 9–4 · 2024/25
38%
GCSE 5+ · 2024/25
43.1
Attainment 8 · 2024/25
7%
EBacc entry · 2024/25
618.4
EBacc APS · 2024/25
1,021
Pupils · 2024/25
60%
EAL · 2024/25
23%
Persistent abs. · 2024/25
Ofsted inspection
Good
Ofsted inspection · 14/11/2023
Inadequate
Requires improvement
Good
Outstanding
Local authorityHounslow
PhaseSecondary with sixth form with sixth form
School typeAcademy
Pupil : teacher ratio13.7:1
AdmissionsNon-selective
Religious characterNone
StatusOpen
Overview of Isleworth and Syon School for Boys · Secondary with sixth form · Hounslow
How does this school perform?
Key Stage 4 · 2024/25 · trend since 2016/17
GCSE 9–4 incl. Eng & maths
54%
-9pp
71%63%55%
'19'22'23'24'25
'25 · 55%
GCSE 5+ incl. Eng & maths
38%
-6pp
51%45%38%
'19'22'23'24'25
'25 · 38%
Attainment 8
43.1
-5.1
52.047.543.1
'19'22'23'24'25
'25 · 43.1
EBacc entry
7%
-10pp
34%20%7%
'19'22'23'24'25
'25 · 7%
EBacc APS
618.4
-286.7
935.0776.7618.4
'19'22'23'24'25
'25 · 618.4
Sixth form
Key Stage 5 · 2024/25 · trend since 2016/17
A-level APS
34.1
-1.6
37.133.429.8
'19'22'23'24'25
'25 · 34.1
A-level value added
+0.18
+0.2
+0.20.0-0.2
'17'18'19'24'25
'25 · +0.2
AAB+ in facilitating subjects
9%
-11pp
29%19%9%
'19'22'23'24'25
'25 · 9%
Average A-level grade
C+
-1
B-C+C
'19'22'23'24'25
'25 · C+
Pupils & context
2024/25
Pupils on roll
1,021
Pupil : teacher ratio
13.7
Workforce data · 2025/26
EAL
60%
FSM eligible
28%
SEN
14%
Overall absence
8%
Persistent absence
23%
Contact
Address
Ridgeway Road, Isleworth, TW7 5LJ
Local authority
Hounslow
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 | 54% | 38% | 43.1 | Not applicable | 7% | 618.4 | 22% | 1,021 |
| 2023/24 | 64% | 44% | 48.2 | +0.09 | 16% | 905.0 | 23% | 1,087 |
| 2022/23 | 64% | 39% | 45.5 | -0.27 | 13% | 695.7 | 27% | 1,099 |
| 2021/22 | 71% | 51% | 52.0 | +0.08 | 16% | 935.0 | 37% | 1,107 |
| 2018/19 | 70% | 45% | 49.4 | -0.01 | 34% | 724.5 | 34% | 1,056 |
| 2017/18 | 68% | 49% | 49.1 | +0.30 | 49% | 772.9 | 50% | 1,027 |
| 2016/17 | 64% | 37% | 46.3 | +0.46 | 16% | — | 29% | 965 |
Sixth form — Key Stage 5
| Year | A-level APS | Avg grade | VA progress | AAB+ | Cohort |
|---|---|---|---|---|---|
| 2024/25 | 34.1 | C+ | +0.18 | 9% | 61 |
| 2023/24 | 35.7 | B- | +0.00 | 20% | 112 |
| 2022/23 | 34.8 | C+ | — | 26% | 89 |
| 2021/22 | 37.1 | B- | — | 29% | 91 |
| 2018/19 | 29.8 | C | -0.17 | 16% | 75 |
| 2017/18 | 30.9 | C | -0.10 | 18% | 72 |
| 2016/17 | 29.8 | C | -0.15 | 17% | 87 |
Pupils & absence
| Year | Pupils | Pupil:teacher | SEN | EAL | FSM ever | Absence | Persistent absence |
|---|---|---|---|---|---|---|---|
| 2024/25 | 1,021 | 14.7 | 14% | 60% | 28% | 8% | 23% |
| 2023/24 | 1,087 | 15.3 | 14% | 61% | 29% | 8% | 25% |
| 2022/23 | 1,099 | 15.4 | 14% | 62% | 30% | 8% | 26% |
| 2021/22 | 1,107 | 15.2 | 14% | 65% | 29% | 7% | 20% |
| 2020/21 | 1,118 | 14.2 | 13% | 66% | 24% | — | — |
| 2018/19 | 1,056 | 16.6 | 14% | 67% | 27% | 5% | 10% |
| 2017/18 | 1,027 | 16.7 | 13% | 65% | 30% | 4% | 11% |
| 2016/17 | 965 | 14.9 | 13% | 65% | 34% | 5% | 10% |
School performance data © Crown copyright. Source: Department for Education.