[2] The underground station platform will be located on the north side of the Eglinton Avenue directly under the main entrance.

The station design provides an opportunity to bring sunlight from this entrance down to the platform level[2] via an open shaft from the upper concourse.

[8] As part of a program to install artworks at major interchange stations along Line 5 Eglinton, Caledonia station will feature the artwork Ride of Your Life by Janice Kerbel, consisting of a series of large-scale mosaic wall works which will be visible from the Line 5 platform level.

[9] In May 2015, Metrolinx announced plans to add Caledonia as a future stop on the GO Transit Barrie line.

In future, through the Regional Rail Express project, a second track is planned for the GO line to enable all-day, two-way GO train service.