Chelsfield Primary School vs Orion Blenheim
A head-to-head comparison of two primary schools in London, England, 1.8 km apart, using official English 2025 data. The better value in each row is highlighted.
Chelsfield Primary School
Orpington · Academy primary · Ages 4–11
97 students
Orion Blenheim
Orpington · Academy primary · Ages 2–11
196 students
| Measure | Chelsfield Primary School Orpington, London | Orion Blenheim Orpington, London |
|---|---|---|
| Success Index (England) | 12 Lower 50% | 53 Top 50% |
| Region rank | #1701 of 1,720 | #1115 of 1,720 |
| National rank | #15020 of 15,697 | #7375 of 15,697 |
| Sector | Academy | Academy |
| Type | Primary | Primary |
| Year range | Ages 4–11 | Ages 2–11 |
| Students | 97 | 196 |
| Pupils on roll | 97 | 196 |
| Free school meals | 25.8% | 37.8% |
| Capacity filled | 89% | 93.3% |
| KS2 expected standard (RWM) | 27% | 71% |
| KS2 higher standard (RWM) | 0% | 7% |
| KS2 reading progress | – | – |
| KS2 writing progress | – | – |
| KS2 maths progress | – | – |
| Attainment 8 | – | – |
| Progress 8 | – | – |
| Grade 5+ English & maths | – | – |
| Grade 4+ English & maths | – | – |
| EBacc average points | – | – |
| A level points per entry | – | – |
| town | Orpington | Orpington |
| region | London | London |
| Website | www.chelsfield.bromley.sch.uk/ | www.orionblenheim.org.uk |
The verdict
- •Orion Blenheim scores higher on the Success Index (England) (52.9 vs 12.2).
- •Orion Blenheim does better on ks2: reading, writing & maths expected standard (71% vs 27%).
- •Orion Blenheim does better on ks2: higher standard (7% vs 0%).
- •Orion Blenheim is the larger school with 196 students compared with 97.
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 Chelsfield Primary School better than Orion Blenheim?
On the Success Index (England), Orion Blenheim ranks higher (52.9 vs 12.2 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 Chelsfield Primary School and Orion Blenheim?
About 1.8 km in a straight line, between Orpington and Orpington in London.
Which has the better Pupils on roll?
Chelsfield Primary School: 97. Orion Blenheim: 196. Number of pupils in the latest school census.
How do Chelsfield Primary School and Orion Blenheim rank in London?
Chelsfield Primary School is 1701st of 1,720 and Orion Blenheim is 1115th of 1,720 among primary schools in London on the 2025 Success Index (England).