Scarborough Subway Extension Opens on Line 2

Construction research — October 24, 2026

Scarborough’s extension is In Progress: August 2026 reporting documents piling and excavation at Lawrence/McCowan and more than 75% tunnelling. It explicitly says there is no official opening date. The saved 2033 year anchor is retained only as an unconfirmed reported estimate. The CAD5.7bn stations/rail/systems contract excludes separately contracted tunnel works and is not substituted for an unverified current all-in extension budget.

• Scarborough Subway Extension makes major progress, but opening date remains unclear: crews have begun piling and excavation work^[1]

Earlier pin evidence

• The Scarborough Subway Extension runs 7.8 km and adds three stations to TTC Line 2: Lawrence and McCowan, Scarborough Centre, and Sheppard and McCowan, "which will serve as the line's new eastern terminus"^[1]
• The source gives no confirmed opening: "Despite the construction progress, there is still no official opening date for the project"^[1]
• It reports that in May the Toronto Star said internal TTC emails indicated the anticipated opening had slipped from 2030 to 2033, "although neither Metrolinx nor the provincial government has officially confirmed that revised timeline" - so the pin's 2033 date rests on an unconfirmed report rather than an announced date^[1]
• Tunnelling, begun in 2023, is "now more than 75 per cent complete", and Metrolinx and the Ontario government announced that progress the week before the report^[1]
• Major construction has begun at the future Lawrence and McCowan Station near Lawrence Avenue East and McCowan Road, with piling and excavation under way; it is the second of the three new stations to enter major construction, after Scarborough Centre "last year"^[1]
• Lawrence and McCowan is expected to serve more than 5,000 riders and accommodate more than 4,000 transfers during rush hour, with a bus terminal connecting to express routes on Lawrence Avenue^[1]
• Once complete, the province estimates the extension "will support approximately 105,000 daily trips while placing an additional 38,000 residents and 34,000 jobs within a 10-minute walk of rapid transit"^[1]
• It replaces the Scarborough RT, which closed permanently in 2023 after a derailment; the replacement express buses are expected to move onto a dedicated busway along the former RT corridor when it opens in 2027^[1]
• The pin's $5.7 billion Infrastructure Ontario figure for the stations, rail and systems contract does not appear anywhere in the source^[1]

Cost

The published cost is CAD 10.2 billion: Metrolinx's June 2025 estimated total cost of the Scarborough Subway Extension (the earlier c. CAD5.5bn was construction only; CAD5.7bn is the stations contract alone).^[4]