56MW Data Centre Campus Proposed at 3650 Danforth Avenue

STACK Infrastructure is proposing the TOR01 Data Centre Campus at 3650 Danforth Avenue in Scarborough. The campus is marketed at 56MW of critical capacity across three buildings on roughly 19 acres. WZMH Architects is designing the expansion: two two-storey buildings, 82 feet tall.

The site is the former Eli Lilly pharmaceutical plant, closed in 2019 after 70 years. First Gulf partnered with STACK to deliver the initial phase by renovating the existing building. That facility, TOR01A, operates at 8MW and has been running since 2023. The expansion adds 48MW via two new buildings: TOR01B (217,000 sq ft, 24MW) and TOR01C (212,000 sq ft, 24MW). Toronto Hydro has committed power from three diverse substations using 100% renewable energy. First Gulf reports the next 24MW phase is planned for delivery in the second quarter of 2026; no delivery date is given for the third phase.

The proposal has drawn significant opposition. Council received 7,722 communications asking the City to halt the expansion. In July 2026, Council adopted an amended motion, 'Ensuring Due Diligence on Data Centres in Scarborough Southwest,' by a 25-0 vote, but did not approve a moratorium. The expansion is proceeding through a delegated site-plan process rather than a rezoning requiring a Council vote. The site sits about 6 to 7 miles from 151 Front Street, Canada's largest carrier hotel.