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School · SecondaryiSource and licenceOfficial record from Get Information about Schools (DfE). Results, attendance, pupil numbers, finance and inspection outcomes are from the Department for Education and Ofsted, as published.Contains public sector information licensed under the Open Government Licence v3.0.Governance Register calculates the connections.How we handle data

Chislehurst and Sidcup Grammar School

Academy converter secondary school in Sidcup (Bexley).

Attainment 8
75.3
▲ 29.1 England 2025/26 provisional: 46.2
2025/26 provisional
English & maths 5+
97.5%
▲ 51pp England 2025/26 provisional: 46.3%
2025/26 provisional
Attendance rate
96.2%
▲ 5pp England 2024/25: 91.6%
2024/25 academic year
Pupil : Teacher
19.1
▲ 2.4 England 2025/26: 16.7
2025/26
Eligible for free school meals
3.7%
▼ 24pp England 2025/26: 27.3%
school census 15/01/2026
Teacher turnover
8.4%
▼ 6pp England 2024/25: 14.2% (secondary schools)
2024/25
Capacity
116%
1,561 / 1,344 pupils
register figure (GIAS)
Ofsted
Ungraded inspection
inspected Dec 2022

Enrichment found on the school website

23Clubs and activitiesfound on the website
1Programmesteaching and wellbeing approaches
3Awards and marksnamed by the school

By areaiFound on the school website by WhatSchool, March 2026. Not verified; the school website is the authority. Counts show what a website mentions, not how much a school offers.

  • 13 Sports and active
  • 2 STEM and digital
  • 2 Creative arts
  • 4 Music and performance
  • 1 Life skills and outdoor
  • 2 Other

Clubs, activities and programmes

24 listediActivities are as listed on the school website. Programme descriptions are Governance Register summaries; where none is given, WhatSchool's category is shown. Found on the school website by WhatSchool, March 2026. Not verified; the school website is the authority.

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ActivityTypeAreaAbout
AthleticsClubSports and active-
BadmintonClubSports and active-
BandClubMusic and performance-
CricketClubSports and active-
Cross CountryClubSports and active-
DanceClubSports and active-
DebatingClubMusic and performance-
DramaClubMusic and performance-
FootballClubSports and active-
HockeyClubSports and active-
MindfulnessClubLife skills and outdoor-
NetballClubSports and active-
OrchestraClubMusic and performance-
PhotographyClubCreative arts-
RoundersClubSports and active-
RugbyClubSports and active-
StemClubSTEM and digital-
SwimmingClubSports and active-
Table TennisClubSports and active-
TennisClubSports and active-
TextilesClubCreative arts-
WoodworkClubOther-
Young EnterpriseClubOther-
Times Tables Rock StarsProgrammeSTEM and digitalOnline times tables practice, played as a game.

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