ACADEMY CONVERTER · SECONDARY · MIXED
Chislehurst and Sidcup Grammar School
Goodgraded 14/12/2022Ages 11–181,517 pupilsDoes not apply
Chislehurst and Sidcup Grammar School is a secondary school for pupils aged 11 to 18 in Sidcup, within the Bexley local authority. The school has around 1,517 pupils on roll. At its most recent graded Ofsted inspection in 14/12/2022, Chislehurst and Sidcup Grammar School was judged Good. Recent GCSE results show above-average progress (a Progress 8 score of +0.8), an average Attainment 8 score of 76.2 and 97% of pupils gaining a grade 5 or above in English and maths. Families comparing secondary schools in Sidcup can view Chislehurst and Sidcup Grammar School's Ofsted rating, GCSE results and exact location free on NestScope.
Attendance & staffing
Attendance95.9%England avg 91.0%
Persistent absence7.1%England avg 25.8%
Pupils per teacher17.8England avg 17.6
Teachers with QTS100%England avg 97%
DfE — absence & workforce, 2025/26
Pupil intake
Free school meals3.7%England avg 28.6%
English not first language12.1%England avg 18.3%
DfE school census, 2025/26
GCSE results — Key Stage 4
Attainment 875.6
Progress 8+0.8
Grade 5+ English & maths99%
Grade 4+ English & maths100%
EBacc entry96%
EBacc average point score7.47
DfE, 2024/25
Sixth form — A-level
A-level grade (point score)BAPS per entry 41.2
Value added+0.02Average · 95% CI -0.1 to 0.1
Retention100%
DfE 16-18 results, 2024/25
Nearby schools in Sidcup
All schools in Sidcup →Rose Bruford College0.2 miBirkbeck Primary SchoolGood · 0.3 miChatsworth Infant SchoolGood · 0.3 miHoly Trinity Lamorbey Church of England SchoolGood · 0.2 miHurstmere SchoolRequires Improvement · 0.3 miBurnt Oak Junior SchoolOutstanding · 0.3 mi
See the full area report for DA15 9AG →