Through their House, students are able to participate in an extensive array of activities including music, drama, cheerleading, debating, sporting round robins, gymnastics, swimming, athletics, cross country and more. Four Houses were established in 1933 and the fifth, Nevile, established in 1959. All are named after significant benefactors, former Chairs of the MLC Council and former Principals of the College. Each student is allocated to a House at the beginning of her journey at MLC. Students with relatives who have previously attended the College are allocated to the same House. The five Houses are:
Students have a network of staff and older students within their House for the duration of their time at the College, from whom they can seek advice and support. House staff get to know students and their families closely, follow the development of individual students within their House and through their MLC journey.