| Type | Other independent school |
| Phase | All through |
| Gender | Girls |
| Age Range | 4 - 19 |
| Headteacher | Ms Antonia Geldeard |
| Address |
19 Westwood Hill Sydenham London SE26 6BL |
| Religious Character | None |
| Website | https://www.sydenhamhighschool.gdst.net/ |
| Telephone | 2085577000 |
| Number of pupils | 723 |
| Inspection | |
| GCSE national ranking | -- |
| A-Level national ranking | Top 7% |
| Local authority | Lewisham |
| Region | London |
| URN | 100757 |
| View this school information in GOV.UK website | |