For more information about the Yonge North Subway Extension, please visit the Metrolinx Yonge North Subway Extension page.

Project Background

In April 2019, the Yonge North Subway Extension was announced as part of the 2019 Provincial Budget. In March 2021, Metrolinx released an initial business case (IBC) for the project, which was presented to the Metrolinx Board at its March 25, 2021 meeting. The IBC proposed an updated project scope of four stations along the approximately eight-kilometre extension of TTC’s Line 1 north from Finch Station to Richmond Hill.

The project has been identified as the sole responsibility of Metrolinx per Ontario Regulation 248/19 Interim Measures – Upload of Rapid Transit Projects. Toronto City Council has passed several resolutions requiring that the Ontario Line be in-service prior to the in-service date of the Yonge North Subway Extension. According to the 2019 Provincial Budget, this project is planned to have an in-service date of 2029-2030, following the in-service date of the Ontario Line.

Current Project Status

Project planning and design is led by Metrolinx and is currently underway. For more details regarding planning and design work underway, see Metrolinx’s Yonge North Subway Extension project page.