SecondaryAcademyOpen

Chislehurst and Sidcup Grammar School

Hurst Road, Sidcup, Kent, DA15 9AG · URN 137423

Public data summary

8.4

out of 10 · 21 data sources

Coverage 62% · Solid

Record

At a glance

Ofsted: Good
Pupils: 622
Age range: 11–18
Gender: Mixed
Capacity: 1,344
Local authority: Bexley

Outcomes

Published performance

GCSE Progress 8: 0.82
GCSE Attainment 8: 76.0
A-level average: B
Sustained education: 68.0%
University: 67.0%

Context

Attendance and community

Overall absence: 4.1%
Persistent absence: 7.1%
Free school meals: 3.2%
SEN support: 1.0%
English additional language: 10.9%

Resources

Workforce and funding

Pupil–teacher ratio: 7.6:1
Average class size: 22.5
Staff turnover: 11.9%

Official-data model

Data dimensions

Achievement

9.6

5 contributing signals

Progress

9.7

1 contributing signals

Attendance

8.5

5 contributing signals

Resources

7.1

3 contributing signals

Equity

7.5

2 contributing signals

Destinations

7.3

5 contributing signals

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School contact

Official website

02083026511

School records are retained from official public datasets and managed through the Y School admin. This atlas is a supporting layer, not the current Y School product. Last refreshed 02/06/2026.