Coolock also changed their homeroom model to a vertical housegroup system. At Coolock, each house now has six Years 10 to 12 housegroups. At La Valla, each house has two Year 7 housegroups, two Year 8 housegroups and two Year 9 housegroups. The total number of housegroups across the college is 64. There are also two further housegroups, bringing the total to 66. In 2017 the La Valla site changed its homeroom to vertical, so it could bring the Years 7, 8, and 9 together.