Welcome back students – The 2018-19 school year has commenced! |  Oct. 26th is a PA Day – No School for Students. | Join us at our Open House on Oct. 27!

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

Congratulations Hennessey Luu-Brown on her Commitment to Brown University!!!

J. Addison School would like to congratulate Hennessey Luu-Brown on her commitment to Brown University (Ivy League)! Last year, Hennessey earned the award for “Best in Prep All-Star Game” and aided our Elite Girls’ Basketball Team to place Top 3rd… more