Chislehurst and Sidcup Grammar School vs Holy Trinity Lamorbey Church of England School
A head-to-head comparison of two schools in London, England, 379 m apart, using official English 2025 data. The better value in each row is highlighted.
Chislehurst and Sidcup Grammar School
Sidcup · Academy secondary · Ages 11–18
1,561 students
Holy Trinity Lamorbey Church of England School
Sidcup · Academy primary · Ages 3–11
241 students
| Measure | Chislehurst and Sidcup Grammar School Sidcup, London | Holy Trinity Lamorbey Church of England School Sidcup, London |
|---|---|---|
| Success Index (England) | 97 Top 5% | 44 Lower 50% |
| Region rank | #16 of 640 | #1306 of 1,720 |
| National rank | #52 of 4,090 | #9256 of 15,697 |
| Sector | Academy | Academy |
| Type | Secondary | Primary |
| Year range | Ages 11–18 | Ages 3–11 |
| Students | 1,561 | 241 |
| Pupils on roll | 1,561 | 241 |
| Free school meals | 2% | 10.4% |
| Capacity filled | 116.1% | 57.4% |
| KS2 expected standard (RWM) | – | 52% |
| KS2 higher standard (RWM) | – | 8% |
| KS2 reading progress | – | – |
| KS2 writing progress | – | – |
| KS2 maths progress | – | – |
| Attainment 8 | 75.6 | – |
| Progress 8 | – | – |
| Grade 5+ English & maths | 98.9% | – |
| Grade 4+ English & maths | 99.5% | – |
| EBacc average points | 7.47 | – |
| A level points per entry | 41.2 | – |
| town | Sidcup | Sidcup |
| region | London | London |
| Website | www.csgrammar.com/ | www.htl.bexley.sch.uk |
The verdict
- •Chislehurst and Sidcup Grammar School scores higher on the Success Index (England) (97.1 vs 44.1).
- •Chislehurst and Sidcup Grammar School is the larger school with 1,561 students compared with 241.
The Success Index (England) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.
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Frequently asked questions
Is Chislehurst and Sidcup Grammar School better than Holy Trinity Lamorbey Church of England School?
On the Success Index (England), Chislehurst and Sidcup Grammar School ranks higher (97.1 vs 44.1 out of 100). The index is built from published results and context data, not from teaching quality or fit, so visit both schools before deciding.
How far apart are Chislehurst and Sidcup Grammar School and Holy Trinity Lamorbey Church of England School?
About 379 m in a straight line, between Sidcup and Sidcup in London.
Which has the better Pupils on roll?
Chislehurst and Sidcup Grammar School: 1,561. Holy Trinity Lamorbey Church of England School: 241. Number of pupils in the latest school census.
How do Chislehurst and Sidcup Grammar School and Holy Trinity Lamorbey Church of England School rank in London?
Chislehurst and Sidcup Grammar School is 16th of 640 and Holy Trinity Lamorbey Church of England School is 1306th of 1,720 among secondary schools in London on the 2025 Success Index (England).