User Notice: Cookies

This website uses cookies to enhance your user experience and improve our website performance.

By continuing on this website, you consent to the use of the cookies.

For more information on the cookies we use and how to manage your cookies settings, please read this Privacy Statement

Yonge North Subway Extension

Project Type:
To be confirmed
Infrastructure Type:
Contract Value:
To be announced at Financial Close

About the Project

The Yonge North Subway Extension (YNSE) will extend the TTC’s Line 1 subway service approximately 8 kilometres from the existing terminus at Finch Station into the City of Richmond Hill. This is a cross-jurisdictional project spanning the City of Toronto and York Region, including sections within the cities of Markham, Vaughan and Richmond Hill. It will include an approximately 6.3-kilometre underground tunnel segment. Once complete, the YNSE will connect with local and GO transit services. 

The Yonge North Subway Extension is one of the priority transit projects  announced by the Province in 2019 in the New Subway Transit Plan for the Greater Toronto Area. The other three projects in the plan include the Scarborough Subway Extension, the Eglinton Crosstown West Extension and the Ontario Line.

The Yonge North Subway Extension is to be delivered in separate procurement contracts:

  1. An advance tunnel between Finch Station and Richmond Hill.
  2. A contract to construct the stations and other facilities, fit out the tunnel and install and commission the systems (Stations, Rail and Systems).

Latest News

Project Status

  • Program Controls Service Consultant: 360 Alliance - Stantec and Jacobs (awarded June 2020) 
  • Technical Advisor: OneT+ - Gannett Fleming and IBI Group (awarded June 2020)
  • Legal Advisor: McCarthy Tetrault LLP (awarded November 2019) 


The scope of work includes:

  • An approximately 7.4 kilometre subway extension, north from Finch Station to Richmond Hill
  • Train storage and light maintenance facility
  • Bus terminals
  • Commuter parking facilities
  • Transit connections to VIVA BRT and GO train service (Richmond Hill Line)

Project Benefits

  • Improves access to transit for area residents
  • Reduces daily travel times for commuters
  • Economic and community growth along the future transit line and job creation opportunities
  • Reduction in traffic congestion, greenhouse gases and fuel consumption by providing an alternative transportation option

Terms of Use

These project documents are being made available on this website for informational purposes only. Neither Infrastructure Ontario nor Metrolinx makes any representation or warranty regarding the accuracy or completeness of the content or form of these documents. 

Infrastructure Ontario and Metrolinx, in their sole and absolute discretion, may choose to make available on this website amendments, revisions, modifications or replacements to these documents. These documents remain open for further revision, modification, replacement or cancellation by Infrastructure Ontario and Metrolinx at any time and in no event shall either Infrastructure Ontario or Metrolinx be responsible or liable, directly or indirectly, for any damage or loss caused or alleged to be caused by or in connection with the use of or reliance on the content of these documents.