Chislehurst and Sidcup Grammar School
Sidcup, Kent, Greater London · DA15 9AG
A high-performing co-educational grammar in Sidcup, Chislehurst and Sidcup Grammar School draws families across the Bexley area who are looking for academic rigour without single-sex schooling. With around 1,517 pupils against a stated capacity of 1,344, the school runs well above its intended size, a reflection of strong and sustained demand. Entry is at 11 through the Bexley Selection Test consortium, and competition for the 192 available places is considerable.
1,517
Pupils
192
Places (PAN)
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Schools nearby
Open in Google Maps ↗Overview & data
- Gender
- Mixed
- Type
- state grammar school
- Pupils
- 1,517
- Pupil:teacher ratio
- 19
- Location
- Sidcup, Kent, Greater London
- Website
- http://www.csgrammar.com/
Entrance & admissions
- Consortium
- Bexley Selection Test
- Exam board
- GL Assessment
- Subjects tested
- English, Maths, Non-Verbal Reasoning, Verbal Reasoning
- Places (PAN)
- 192
- Entry age
- 11
Key dates· 2027 entry
Registration opens
1 March 2026
Registration closes
31 March 2026
Application deadlineNext
31 October 2026
Offers date
1 March 2027
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Latest results
Attainment 8
75.6
National average 46.9
GCSE grade 5+ (English & Maths)
99%
National average 47%
Teaching & academics
Results here sit far above national benchmarks. The average Attainment 8 score of 75.6 is well over the national figure of 46.9, and 99% of pupils secure a grade 5 or above in English and Maths against a national average of 47%. With a pupil-to-teacher ratio of roughly 19, this is a setting where able, motivated children are stretched and expected to perform.
Learning support & SEN
- SEN support
- 0.46%
- EHC plans
- 0.53%
- English as additional language
- 10.9%
- Free school meals
- 2.7%
Ethos & heritage
- Boarding
- No
The last word
A genuinely selective, oversubscribed grammar where strong results are the norm. Families confident in their child's exam readiness will find a school that delivers academically.
The Passmate verdict
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Chislehurst and Sidcup Grammar School 11+: frequently asked questions
Where is Chislehurst and Sidcup Grammar School located?
Chislehurst and Sidcup Grammar School is located at Hurst Road, Sidcup, DA15 9AG.
What type of school is Chislehurst and Sidcup Grammar School?
Chislehurst and Sidcup Grammar School is a state grammar school in Greater London.
What subjects does Chislehurst and Sidcup Grammar School test in the 11+?
Chislehurst and Sidcup Grammar School tests English, Maths, Non-Verbal Reasoning and Verbal Reasoning at 11+.
Which exam board does Chislehurst and Sidcup Grammar School use for the 11+?
Chislehurst and Sidcup Grammar School's 11+ uses GL Assessment.
How do I apply to Chislehurst and Sidcup Grammar School?
For 2027 entry, registration opens on 1 March 2026, registration closes on 31 March 2026 and the application deadline is 31 October 2026.
When are Chislehurst and Sidcup Grammar School 11+ offers released?
For 2027 entry, Chislehurst and Sidcup Grammar School releases offers on 1 March 2027.
Which consortium does Chislehurst and Sidcup Grammar School belong to?
Chislehurst and Sidcup Grammar School is part of the Bexley Selection Test consortium.
How many places does Chislehurst and Sidcup Grammar School offer?
Chislehurst and Sidcup Grammar School has a published admission number of 192 places.
How many pupils attend Chislehurst and Sidcup Grammar School?
Chislehurst and Sidcup Grammar School has approximately 1,517 pupils on roll.
Compiled from public data. Last checked June 2026.