129
Pupils · 2024/25
16%
EAL · 2024/25
39%
Persistent abs. · 2024/25
Performance data for special schools may use different measures or have limited headline GCSE publication.
Ofsted inspection
Outstanding
Ofsted inspection · 20/04/2023
Inadequate
Requires improvement
Good
Outstanding
Local authorityHertfordshire
PhasePrimary
School typeSpecial school
Pupil : teacher ratio6.8:1
AdmissionsNot applicable
Religious characterDoes not apply
StatusOpen
Overview of Colnbrook School · Primary · Hertfordshire
Pupils & context
2024/25
Pupils on roll
129
Pupil : teacher ratio
6.8
Workforce data · 2025/26
EAL
16%
FSM eligible
26%
SEN
100%
Overall absence
10%
Persistent absence
39%
Contact
Address
Hayling Road, Watford, WD19 7UY
Local authority
Hertfordshire
Website
Telephone
Email
—
History
All years · Historical DfE data by academic year
Pupils & absence
| Year | Pupils | Pupil:teacher | SEN | EAL | FSM ever | Absence | Persistent absence |
|---|---|---|---|---|---|---|---|
| 2024/25 | 129 | 6.6 | 100% | 16% | 26% | 10% | 39% |
| 2023/24 | 112 | 5.3 | 100% | 14% | 35% | 12% | 29% |
| 2022/23 | 113 | 6.8 | 100% | 12% | 35% | 12% | 29% |
| 2021/22 | 111 | 6.7 | 100% | 11% | 36% | 11% | 34% |
| 2020/21 | 102 | 6.1 | 100% | 14% | 37% | — | — |
| 2018/19 | 101 | 8.1 | 100% | 17% | 36% | 6% | 11% |
| 2017/18 | 101 | 7.8 | 100% | 19% | 35% | 8% | 19% |
| 2016/17 | 100 | 5.6 | 100% | 21% | 29% | 7% | 16% |
School performance data © Crown copyright. Source: Department for Education.