Welcome back students – The 2018-19 school year has commenced! | Leadership Trip for Dorm Students on Sept. 15th | Sept. 24th is a PA Day – No School for Students | School will be closed Oct. 8th for Thanksgiving |

We are a K-12 private day and boarding school located in Markham, Ontario, Canada. With our unwavering dedication, care and support, we nurture our tomorrow’s thinkers to becoming responsible and compassionate global citizens.

300 students
capacity

1:15 teacher to student ratio

3 residence
halls

Career Day/Career Speaker Series

J. Addison School would like to invite you to be a guest presenter as part of our Career Day/Career Speaker Series on April 17, 2018 from 2 – 4 pm at J. Addison School. Inspire the youth of our community… more