On March 17, 2021, I received a confidential briefing by Metrolinx on their initial business case for the Yonge North Subway Extension.

Most notable among the items presented was the proposed alignment of the subway as it travels north of Centre Street/Thornhill Summit Drive in Thornhill.

Metrolinx is proposing that the subway swing east close to Royal Orchard Blvd. at an initial depth of 30 metres below ground and travel northeast below homes (at depths that vary between 15 and 30 metres) on Donalbain Crescent and portions of Thorny Brae Drive and Banquo Road as it continues through the neighbourhood before turning north (still underground) at Kirk Drive near the southern portion of St. Anthony Catholic Elementary School.  It will continue travelling underground along the existing CN Railway/GO Train corridor as it proceeds north to the proposed Bridge station near the Langstaff GO station.

I am opposed to any alignment that does not adhere to Yonge Street.  I am therefore opposed to any route that sees the subway travelling underground below a section of homes in the Royal Orchard neighbourhood.

If you feel as I do please sign the petition below.

Questions and comments can be directed to Metrolinx at:  YongeSubwayExt@metrolinx.com or 416-202-7000.  More information from Metrolinx on the Yonge North Subway Extension can be found here: metrolinx.com/yongesubwayext.

Original proposed track alignment.

Please note: The above map is an approximation only for illustrative purposes. The planned route may vary from what you see here.

Have your voice heard, sign the petition.

  • Metrolinx announced plans in March 2021 to take construction of the Yonge North Subway Extension underground through Thornhill’s cherished Royal Orchard neighbourhood.


    I, the undersigned, am opposed to any route that does not adhere to Yonge Street and consequently opposed to any route that would see the subway travelling underground below a section of homes in the Royal Orchard neighbourhood.

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