Chislehurst and Sidcup Grammar School
#16 of 640 secondary schools in London
#52 of 4,090 nationally
About Chislehurst and Sidcup Grammar School
Chislehurst and Sidcup Grammar School is a academy secondary located in Sidcup, in the Bexley local authority of London, England. It caters for Ages 11–18. In 2025 it enrolled 1,561 students. Academies and free schools are state-funded and free to attend, run by academy trusts rather than the local authority.
Its Success Index (England) is 97.1 out of 100, placing it in the top 5% of secondary schools in England and 16th of 640 ranked secondary schools in London. Its strongest component is community advantage (fewer pupils on free school meals) (100th percentile), and its weakest is a level points per entry (86th percentile).
Other published figures: pupils on roll 1,561; capacity filled 116.1%; grade 4+ english & maths 99.5%; ebacc average points 7.47.
There are 20 schools in Sidcup; Chislehurst and Sidcup Grammar School ranks 2nd of 17 scored schools there.
Success Index (England) breakdown
Each component is a percentile against secondary schools across England.
- KS2: reading, writing & maths expected standard (35%)–
- KS2: higher standard (20%)–
- KS2: reading progress (10%)–
- KS2: maths progress (10%)–
- Progress 8 (20%)–
- Attainment 8 (30%)75.6
- Grade 5+ in English & maths (15%)98.9%
- A level points per entry (10%)41.2
- Community advantage (fewer pupils on free school meals) (15%)2%
The Success Index (England) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Chislehurst and Sidcup Grammar School by the official sources.
- Pupils on roll
- 1,561
- Number of pupils in the latest school census.
- Free school meals
- 2%
- Percentage of pupils eligible for free school meals.
- Capacity filled
- 116.1%
- Pupils on roll as a share of the school's reported capacity.
- Attainment 8
- 75.6
- Average GCSE points across eight subjects.
- Grade 5+ English & maths
- 98.9%
- Share of pupils with a strong pass in both English and maths GCSE.
- Grade 4+ English & maths
- 99.5%
- Share of pupils with a standard pass in both English and maths GCSE.
- EBacc average points
- 7.47
- Average point score across the English Baccalaureate subjects.
- A level points per entry
- 41.2
- Average points per A level entry (A* = 60, E = 10).
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Schools near Chislehurst and Sidcup Grammar School
Closest schools by straight-line distance, with their Success Index (England).
Holy Trinity Lamorbey Church of England School
Sidcup · Academy primary · Ages 3–11
241 students · 379 m away
Birkbeck Primary School
Sidcup · Local authority primary · Ages 3–11
664 students · 450 m away
Chatsworth Infant School
Sidcup · Academy primary · Ages 3–7
210 students · 513 m away
Burnt Oak Junior School
Sidcup · Academy primary · Ages 7–11
245 students · 526 m away
Hurstmere School
Sidcup · Academy secondary · Ages 11–16
893 students · 547 m away
West Lodge School
Sidcup · Independent primary · Ages 3–11
174 students · 844 m away
Benedict House Preparatory School
Sidcup · Independent primary · Ages 2–11
170 students · 957 m away
Cleeve Park School
Sidcup · Academy secondary · Ages 11–18
994 students · 1.1 km away
Sherwood Park Primary School
Sidcup · Academy primary · Ages 3–11
282 students · 1.3 km away
Longlands Primary School
Sidcup · Local authority primary · Ages 5–11
293 students · 1.3 km away
Similar schools
Academy secondary schools in London with a comparable Pupils on roll.
St Mary Magdalene Academy
London · Academy all-through · Ages 4–19
1,561 students
Woolwich Polytechnic School
London · Academy secondary · Ages 11–19
1,565 students
Cranford Community College
Hounslow · Academy secondary · Ages 11–18
1,567 students
Bullers Wood School
Chislehurst · Academy secondary · Ages 11–18
1,555 students
Wembley High Technology College
North Wembley · Academy secondary · Ages 11–19
1,555 students
The Coopers' Company and Coborn School
Upminster · Academy secondary · Ages 11–18
1,568 students
Frequently asked questions
Is Chislehurst and Sidcup Grammar School a good school?
Chislehurst and Sidcup Grammar School has a Success Index (England) of 97.1 out of 100 (Top 5% of secondary schools in England) and ranks #16 of 640 in London. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Chislehurst and Sidcup Grammar School rank in London?
Chislehurst and Sidcup Grammar School ranks #16 of 640 secondary schools in London and #52 of 4,090 nationally on the Success Index (England) (2025 data).
How many students attend Chislehurst and Sidcup Grammar School?
Chislehurst and Sidcup Grammar School had 1,561 students in 2025.
Is Chislehurst and Sidcup Grammar School a primary school or a secondary school?
Chislehurst and Sidcup Grammar School is classified as a secondary covering Ages 11–18. It is a academy school.
What other schools are near Chislehurst and Sidcup Grammar School?
There are 10 schools within 15 km of Chislehurst and Sidcup Grammar School; they are listed on this page with their Success Index (England) and distance, and can be compared side by side.