Chislehurst and Sidcup Grammar School
Academy converter secondary school in Sidcup (Bexley).
Who the school serves
Share of pupils. Free school meals and language: school census, 2025/26. Special educational needs: 2025/26. England figures are for the same type of school, same years. Sources: DfE school census and Special educational needs in England (OGL v3.0), via WhatSchool. "Within 3 miles" is the simple average of the same figure for schools of the same type within 3 miles (4.8 km), not weighted by pupil numbers, using only schools with a figure for the same year; it is shown only when at least 3 schools qualify.
667 girls (43%) and 894 boys (57%) on roll (school register, GIAS, 24 Oct 2026).
Places
- Pupils on roll
- 1,561 (school register, GIAS, 24 Oct 2026)
- Capacity survey
- 1,527 pupils, 1,510 places (2024/25)
- Unfilled places
- 0 (0%) (2024/25)
Free school meals: two measures
- Eligible for free school meals (census)
- 3.7% (57 pupils) share of all pupils on roll, school census 15 Jan 2026
- Register figure (GIAS)
- 2.0% (20 pupils) performance-table basis, GIAS census 15 Jan 2026
- Taking a free meal on census day
- 3.7% eligible pupils who took a meal, share of all pupils on roll
These are different official measures and are never filled in from each other: the census figure counts pupils eligible on census day as a share of all pupils on roll (DfE, Schools, pupils and their characteristics 2025/26); the register figure is the performance-table measure held in Get Information about Schools (24 Oct 2026 extract), with its own population and census date. They differ by more than 0.05 points in 45% of schools.
Support staff
iDerived arithmetic: teaching assistant headcount (school workforce census, November 2025) divided by pupils. TAs also work across the whole school, not only with pupils who have SEN. No England figure is shown.Over time
Eligible for free school meals (census, each January)
SEN support
EHC plansiSchool census, each January. England free school meals: Schools, pupils and their characteristics, DfE, same type of school. England SEN history is not split by type of school, so it is not drawn.
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| Year | Eligible for free school meals (census) | England eligible secondary | SEN support | EHC plan | All SEN |
|---|---|---|---|---|---|
| 2025/26 | 3.7% | 27.3% | 0.6% | 0.5% | 1.1% |
| 2024/25 | 3.2% | 25.8% | 0.5% | 0.5% | 1.0% |
| 2023/24 | 2.7% | 24.1% | 0.9% | 0.3% | 1.2% |
| 2022/23 | 3.3% | 22.7% | 0.8% | 0.1% | 0.9% |
| 2021/22 | 4.2% | 20.9% | 0.8% | 0.1% | 0.9% |
| 2020/21 | 3.3% | 18.9% | 0.4% | 0.3% | 0.7% |
| 2019/20 | 2.8% | 15.9% | 0.6% | 0.3% | 0.8% |
Primary need
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| Primary need | What it can mean | EHC plan | SEN support | Total | Share of all pupils |
|---|---|---|---|---|---|
| Autism | Difficulties with social communication and interaction, often with fixed interests or sensory needs. | 6 | 6 | 12 | 0.8% |
| Speech, language and communication | Difficulty saying what they mean or understanding what others say. | 1 | 1 | 2 | 0.1% |
| Social, emotional and mental health | Difficulties managing emotions or behaviour, which may show as withdrawn or disruptive behaviour. | 1 | 0 | 1 | 0.1% |
| Visual impairment | Sight loss that cannot be fully corrected with glasses. | 0 | 1 | 1 | 0.1% |
| Multi-sensory impairment | Both sight and hearing loss. | 0 | 1 | 1 | 0.1% |
8 pupils with an EHC plan and 9 on SEN support, out of 1561 (school census, 2025/26). Each pupil is counted once, by their primary need. "Share of all pupils" is the pupils with that primary need as a share of all pupils counted in the census (worked out from the figures). DfE Special educational needs in England. The descriptions are general, not about this school.
Understanding this data
- EHC plan
- An education, health and care plan is a legal document from the local council for a child with needs that cannot be met by the school's usual support. It names the support the child must get.
- SEN support
- Extra help given by the school itself to a child with special educational needs who does not have an EHC plan.
- SEN information report
- Every school must publish a report on how it supports pupils with SEN. Look for it on the school website.
Plain-English summary. See GOV.UK: Children with special educational needs.
Guides for parents
All guides- Free school meals and pupil premiumWho gets free school meals in England from September 2026, how to apply, and what it means for the school.