Resources / GTA projects / Yonge North Subway Extension
Infrastructure · Toronto, Vaughan, Markham, Richmond Hill

Yonge North Subway Extension

Under construction. Owner, value, start date and public source for this infrastructure project, tracked by Benjamin R. Consulting.

OwnerMetrolinx
ValueTotal not disclosed; $1.4B advance tunnel contract (Aug 2025)
StartFeb 2023 (early works)
StatusUnder construction
What owners should watch

Transit, highway and airport programs reshape the ground around them.

Programs like this run for years and draw on the same civil trades, engineers, inspectors and utility crews that private owners rely on. Owners building near the alignment should expect road and lane closures, utility relocations and slower municipal reviews while the work is underway.

If you are planning a project nearby, build site access, utility coordination and permit timing into your schedule from day one, and check your logistics plan against the program's published construction staging before you commit to a start date.

Planning a project in Toronto or nearby? Check your budget against 2026 GTA construction costs →

Source: infrastructureontario.ca · Updated October 14, 2026. Values are as published by the owner or in the cited source. Benjamin R. Consulting is not involved in this project. Spotted an update? Tell us.

TorontoMississaugaBramptonVaughanMarkhamPickeringOshawaOakvilleCaledonRichmond HillMiltonBurlingtonLAKE ONTARION10 km