The House System at Ivanhoe Girls' provides students with valuable leadership and teamwork experiences. While many activities encourage friendships between girls of different year levels, students in Senior years provide leadership and organisational roles within their House group.

During annual activities such as sporting events and arts carnivals, the levels of House pride and enthusiasm on display is infectious. House Activities held throughout the year draw on the many talents and interests of students from all age levels. 

Each student is allocated to a House upon enrolment. Students with relatives who attended the School are allocated to the same house as their relatives.