Every HSC student in all four schools belongs to one of four Brother/Sister House combinations. Students are awarded points for achievement in academics and activities. The House combinations are:
- Birch/Earn
- Cedar/More
- Maple/Tay
- Pine/Yre
The House system provides a vertical continuum for the purpose of counselling, special activities and competition. Each House is supervised by staff members and student House officials. In the Middle School, Co-Captains are voted into office by the other students in the House and by faculty.