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OpenSecondaryOfsted: School remains GoodURN 137423

Chislehurst and Sidcup Grammar School

Academy converter · Sidcup · DA15 9AG

Ages 11–18 · 1,561 pupils · Bexley

School website

Ofsted

School remains Good

Attainment 8

76.0

Overall absence

4.1%

Admissions demand

1.19 · Balanced demand

Ofsted

Latest published inspection outcomes — not a ranking.

Read full report

Headline

School remains Good

Inspection date

2023-02-06

Source: Ofsted monthly management information

Performance

Official school-level results. Figures are not rankings — suppressed values are omitted.

Key stage 4 (2023/24)

Progress 8+0.82
−20+2
Attainment 876.0
English & maths grade 5+97%
English & maths grade 4+100%
EBacc entry98%

EBacc APS: 7.4

Source: DfE school and college performance tables

Absence

Academic year 2023/24. Persistent absence means 10%+ of sessions missed. Lower figures are better.

Overall absence4.1%
Persistent absence (10%+)7.1%
Unauthorised0.6%
Authorised absence
3.5%
Severe absence (50%+)
0.6%
Enrolments in measure
972

Absence trend

2021/22

2022/23

2023/24

  • Overall
  • Persistent (10%+)

Source: DfE pupil absence in schools in England

Admissions demand

Coordinated admissions for secondary entry (2024/25 cycle, national offer day). Demand ratio compares families who listed this school 1st with total offers made — not a catchment or distance guarantee.

Demand ratio

1.19 · Balanced demand

1st preferences

241

Places offered

211

1st-preference offers

139

Total preferences (any rank)
1,377
Preferred offers (top 3)
211
Applications from outside LA
852
Offers to outside-LA applicants
162
Admissions policy (GIAS)
Selective

Source: DfE primary and secondary school applications and offers. Figures reflect offers on national offer day; late applications, appeals and waiting lists are not included.

Size & intake

From the GIAS school census (15 Jan 2026).

Capacity fill116%

1,561 pupils · 1,344 places

Pupils on roll
1,561
Boys / girls
894 / 667
School capacity
1,344
Capacity fill
1,561 / 1,344 (116%)
Free school meals
2%
FSM pupils
20
Admissions policy
Selective
Gender
Mixed
School type
Academy converter

Age range

Ages 11–18

05111619

Provision

Official GIAS characteristics

2 / 6

  • Nursery
  • Sixth formHas a sixth form
  • Boarding
  • Special school
  • Independent
  • Academy

School characteristics

Special classes
No Special Classes
Governance
Academy trust: CHISLEHURST AND SIDCUP GRAMMAR SCHOOL
Academy trust
CHISLEHURST AND SIDCUP GRAMMAR SCHOOL
Headteacher
Mr Nigel Walker

Location

Address
Hurst Road
Postcode
DA15 9AG
Town
Sidcup
County
Kent
Local authority
Bexley
District
Bexley
Constituency
Old Bexley and Sidcup
Urban/rural
Urban: Nearer to a major town or city

Local context

How this school sits among open establishments in its area, using official GIAS records. These are counts, not rankings.

Mixed academy converter (secondary), Ages 11–18, in Sidcup, Bexley, 1,561 pupils on roll. Notable characteristics: sixth form, academy, selective admissions. Free school meals: 2%.

Open schools in Sidcup
22
Secondary schools in Sidcup
5
Academies among open schools in Sidcup
55% (12)
Open schools in DA15
14
Secondary in DA15
3
Open schools in Bexley LA
92
Secondary in Bexley LA
15

Nearby secondary schools

Open schools within about 3 miles, prioritising the same phase where possible. Distances are approximate from GIAS coordinates.

Compare with theseAll in SidcupNear DA15

  • Hurstmere School

    Ofsted: Requires improvement

    Academy converter · Secondary

    Sidcup · DA15 9AW · Bexley

    Ages 11–16

    • Absence7.4%
    • FSM15.8%

    0.3 miles away

  • Cleeve Park School

    Ofsted: Good

    Academy converter · Secondary

    Sidcup · DA14 4JN · Bexley

    Ages 11–18

    • Att843.6
    • P8-0.2
    • EM5+38%
    • Absence9.9%

    0.7 miles away

  • Blackfen School for Girls

    Ofsted: Not judged

    Academy converter · Secondary

    Sidcup · DA15 9NU · Bexley

    Ages 11–18

    • Att846.9
    • P8-0.1
    • EM5+46%
    • Absence10.4%

    0.9 miles away

  • Bexley Grammar School

    Ofsted: Outstanding

    Academy converter · Secondary

    Welling · DA16 2BL · Bexley

    Ages 11–18

    • Att874.7
    • P80.5
    • EM5+98%
    • Absence3.3%

    1.4 miles away

  • Chislehurst School for Girls

    Ofsted: School remains Good

    Academy converter · Secondary

    Chislehurst · BR7 6HE · Bromley

    Ages 11–18

    • Att851.3
    • P80.2
    • EM5+57%
    • Absence8.0%

    1.4 miles away

  • Kemnal Technology College

    Ofsted: Not judged

    Academy converter · Secondary

    Sidcup · DA14 5AA · Bromley

    Ages 11–18

    • Att832.0
    • P8-0.9
    • EM5+16%
    • Absence14.4%

    1.7 miles away

  • Townley Grammar School

    Ofsted: Outstanding

    Academy converter · Secondary

    Bexleyheath · DA6 7AB · Bexley

    Ages 11–18

    • Att876.2
    • P80.7
    • EM5+97%
    • Absence3.7%

    1.7 miles away

  • Harris Academy Falconwood

    Ofsted: Good

    Academy sponsor led · Secondary

    Welling · DA16 2PE · Bexley

    Ages 11–18

    • Att845.8
    • P8-0.0
    • EM5+41%
    • Absence6.6%

    1.7 miles away

New to reading school data? See Ofsted ratings explained and how to compare schools.

Contact

Headteacher
Mr Nigel Walker
Telephone
02083026511
Website
http://www.csgrammar.com/

Official links