The completion of the Junior School's Trottier-Morgan Annex project has provided new teaching and learning spaces for current students, along with adding a much in-demand Junior Kindergarten program to SMUS. The construction which began in March 2022, was completed at the end of  summer of 2023, in time for the opening of the 2023-24 school year.

The establishment of the Trottier-Morgan Annex has made it possible for the creation and expansion of the following new spaces:

  • a learning commons (library),
  • an art room,
  • a music room,
  • new classrooms, and
  • a central atrium, where students experience a shared connection to the outdoors.