| Borough | Camden |
| Postcode | NW3 6PG |
| Phase | Not applicable |
| School type | Other independent school |
| Gender | Girls |
| Age range | 2–11 |
| Sixth form | Does not have a sixth form |
| Admissions | Non-selective |
| Religious character | Roman Catholic |
| Overall rating | Not yet rated |
| Headteacher | Charlotte Owen |
| Phone | 02074351868 |
| Website | http://www.stmh.co.uk/ |
| Crime level | Below average crime |