Blackfen School for Girls vs Days Lane Primary School
A head-to-head comparison of two schools in London, England, 979 m apart, using official English 2025 data. The better value in each row is highlighted.
Blackfen School for Girls
Sidcup · Academy secondary · Ages 11–18
1,324 students
Days Lane Primary School
Sidcup · Academy primary · Ages 3–11
653 students
| Measure | Blackfen School for Girls Sidcup, London | Days Lane Primary School Sidcup, London |
|---|---|---|
| Success Index (England) | 53 Top 50% | 75 Top 25% |
| Region rank | #357 of 640 | #532 of 1,720 |
| National rank | #1827 of 4,090 | #3070 of 15,697 |
| Sector | Academy | Academy |
| Type | Secondary | Primary |
| Year range | Ages 11–18 | Ages 3–11 |
| Students | 1,324 | 653 |
| Pupils on roll | 1,324 | 653 |
| Free school meals | 16.4% | 10.6% |
| Capacity filled | 88.3% | 99.5% |
| KS2 expected standard (RWM) | – | 70% |
| KS2 higher standard (RWM) | – | 17% |
| KS2 reading progress | – | – |
| KS2 writing progress | – | – |
| KS2 maths progress | – | – |
| Attainment 8 | 44.1 | – |
| Progress 8 | – | – |
| Grade 5+ English & maths | 38.6% | – |
| Grade 4+ English & maths | 61% | – |
| EBacc average points | 3.63 | – |
| A level points per entry | 34.0 | – |
| town | Sidcup | Sidcup |
| region | London | London |
| Website | www.blackfenschoolforgirls.co.uk | www.dayslaneprimary.co.uk |
The verdict
- •Days Lane Primary School scores higher on the Success Index (England) (74.5 vs 52.9).
- •Blackfen School for Girls is the larger school with 1,324 students compared with 653.
- •Blackfen School for Girls is girls and Days Lane Primary School is co-educational.
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 Blackfen School for Girls better than Days Lane Primary School?
On the Success Index (England), Days Lane Primary School ranks higher (74.5 vs 52.9 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 Blackfen School for Girls and Days Lane Primary School?
About 979 m in a straight line, between Sidcup and Sidcup in London.
Which has the better Pupils on roll?
Blackfen School for Girls: 1,324. Days Lane Primary School: 653. Number of pupils in the latest school census.
How do Blackfen School for Girls and Days Lane Primary School rank in London?
Blackfen School for Girls is 357th of 640 and Days Lane Primary School is 532nd of 1,720 among secondary schools in London on the 2025 Success Index (England).