About the school
Chislehurst and Sidcup Grammar School, often known as Chis and Sid, is a high-achieving co-educational grammar school with academy status in Sidcup, in the London Borough of Bexley, educating pupils aged 11 to 18. It has a long-standing reputation for academic excellence, a broad and balanced curriculum and an inclusive ethos.
Founded in 1931, the school blends tradition with modern facilities, having invested over £10 million in purpose-built provision for art, music, technology and the performing arts. Students are encouraged to be ambitious, independent and well-rounded, with behaviour described by Ofsted as exemplary.
Chislehurst and Sidcup Grammar School is one of the four grammar schools in the London Borough of Bexley and selects pupils through the shared Bexley Selection Test for Year 7 entry. The intended admission number for September 2027 is 192 pupils.
School type
Co-Educational Grammar (Academy)
Exam date
7th–10th September 2026 (Bexley Test)
Exam board
GL Assessment (Bexley Test)
Address
Hurst Road, Sidcup, Kent, DA15 9AG
Age range
11–18 (Years 7–13)
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Admissions information
The Chislehurst and Sidcup Grammar School entrance test is the Bexley Selection Test, shared by the four Bexley grammar schools. Here is everything you need to know about the Chislehurst and Sidcup Grammar School admissions criteria and exam structure.
Chislehurst and Sidcup Grammar School selects pupils through the Bexley Selection Test, the single 11 plus test used by the four grammar schools in the London Borough of Bexley. The test is provided by GL Assessment and consists of two papers, with a mixture of questions on verbal reasoning and comprehension, non-verbal reasoning and mathematical reasoning.
Both papers are taken on the same day, with a short break in between, and each paper lasts around 50 minutes. The questions are mostly multiple choice, with answers recorded on a separate machine-readable sheet, and the scores are age-standardised. There is no fixed pass mark, as the qualifying standard for being deemed selective is set each year by the selection panel once results are in.
Parents register their child for the Bexley Selection Test online through the London Borough of Bexley website while the child is in Year 5. For September 2027 entry, registration opens on 1st March 2026 and closes on 31st March 2026, with no late registrations accepted. Parents must then name Chislehurst and Sidcup Grammar School on their Common Application Form, which is due by the 31st October.
Test results are sent to parents in mid-October, confirming whether a child has been deemed selective, after which families finalise their secondary school preferences. School place offers are confirmed on National Offer Day, 1st March 2027. Being deemed selective does not guarantee a place, as the grammar schools are heavily oversubscribed and apply their own admissions criteria.
Key admissions details
The intended admission number for Chislehurst and Sidcup Grammar School for September 2027 is 192 pupils at age 11.
Chislehurst and Sidcup Grammar School does not operate a formal catchment area, so any child deemed selective in the Bexley Selection Test may apply regardless of where they live. However, when the school is oversubscribed, distance from the school is used within the oversubscription criteria, with the child living closest given priority in a tie-break.
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Chislehurst and Sidcup Grammar School is located on Hurst Road in Sidcup, in the London Borough of Bexley, DA15 9AG. It is a co-educational grammar school with academy status serving pupils aged 11 to 18.
Chislehurst and Sidcup Grammar School was founded in 1931. Often known as Chis and Sid, it has built a strong reputation over nearly a century for academic results and a broad curriculum.
Chislehurst and Sidcup Grammar School uses the Bexley Selection Test, provided by GL Assessment. It consists of two papers taken on the same day, with questions on verbal reasoning and comprehension, non-verbal reasoning and mathematical reasoning.
Chislehurst and Sidcup Grammar School does not operate a formal catchment area, so any child deemed selective may apply regardless of where they live. However, distance from the school is used in the oversubscription criteria, so living closer is an advantage when places are tight.
For September 2027 entry, registration for the Bexley Selection Test opens on 1st March 2026 and closes on 31st March 2026, through the London Borough of Bexley website. Parents must then name Chislehurst and Sidcup Grammar School on the Common Application Form, which is due by the 31st October.
Entry is extremely competitive. The Bexley Selection Test is taken by far more children than there are places, with around a third deemed selective each year, and only those who reach the qualifying standard can be considered for one of the 192 places.
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