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Scarborough Subway Extension

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A Subway for Scarborough

The proposed Scarborough Subway Extension will bring the TTC’s Line 2 subway service nearly eight kilometres farther into Scarborough.

It will extend from Kennedy Station to Sheppard Avenue and McCowan Road, providing quick and seamless transit for those heading into and out of the downtown core and those travelling within Scarborough. The extension will replace Line 3 (the Scarborough RT), helping to reduce travel times and improve access to jobs, schools and other key destinations throughout the city.

Metrolinx and Infrastructure Ontario are working together to deliver the Scarborough Subway Extension, which is estimated to be complete by 2029-30.



Daily Boardings

A Message From the Project Team

Scarborough Subway Extension project director Mark Ciavarro has seen a lot of exciting growth over more than a decade at Metrolinx. Get to know Mark and find out how the project will transform the commute in Scarborough and beyond.

Where will it take me?

Stations are proposed at Lawrence Avenue and McCowan Road, Scarborough Centre, and Sheppard Avenue and McCowan Road.

The proposed extension will connect to a number of other transit systems to make it easier to travel within the city and beyond. Kennedy Station will provide connections to GO Transit rail services and the Eglinton Crosstown LRT, and the proposed station at Scarborough Centre will connect to GO and proposed Durham-Scarborough Bus Rapid Transit services. There will also be local TTC bus connections at every stop along the extension.

All alignments, stations, stops, locations, names and quantity of stations/stops are conceptual and subject to change.

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By the Numbers

(All numbers are approximate, based on current plans for the project)

Number of proposed stations 3
Proposed connections to other transit options Up to 6
  • 1 GO Train line – Stouffville
  • Up to 2 local rapid transit lines – Line 5 (Eglinton Crosstown); planned connection to future Sheppard Subway Extension
  • 3 bus services – GO Transit, Durham Region Transit and TTC buses
Route length 7.8 km
Ridership 105,000 daily boardings
Increase in transit use 52,000 daily boardings by new users
Improved access to transit 38,000 more people within walking distance to transit
Improved access to jobs 34,000 more jobs within walking distance to transit
Yearly reductions in greenhouse gas emissions 10,000 tonnes

Faster and More Convenient Travel

The proposed Scarborough Subway Extension will improve the customer experience by providing better access to the subway system and minimizing the number of transfers required to get to and from downtown Toronto.

It will also provide a station north of Highway 401 at Sheppard, meaning customers from the northern parts of Scarborough will also spend less time on buses. For drivers, there will be fewer buses on the road as they will be able to terminate at Sheppard and McCowan instead of Scarborough Centre.

Get Involved

Information from our latest virtual engagement for the Scarborough Subway Extension is available on the Metrolinx Engage portal. Check out the latest project updates and what to expect when tunnelling gets underway.

An addendum to the original Scarborough Subway Extension environmental assessment (2017) was needed to reflect the changes to the Scarborough Subway Extension. The addendum to the 2017 EPR was published for public review on July 10, 2020, with comments received to the Project email through August 3, 2020. The EPR Addendum has now been updated, as of August 7, 2020, and is available in the Project Documents section.

Your opinion matters. You can always share thoughts, questions or comments on the project by emailing

Recent Developments

August 20, 2020

  • Metrolinx and Infrastructure Ontario issued the Request for Proposals (RFP) for advanced tunnelling, inviting three shortlisted teams to begin preparing submissions for how they will deliver the project if selected. Infrastructure Ontario and Metrolinx expect to award tunnelling contracts in mid-2021. Read more about the RFP and shortlisted bidders here.

If you have any questions about the Scarborough Subway Extension, please contact

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