We cap off our look back at 2025 by turning to the busiest Forum threads of the year, where reader discussion most vividly reflected the forces reshaping Toronto and the Greater Holden Horseshoe. Transit once again dominated conversation, with Eglinton Line 5<\/a>, Ontario Line 3<\/a>, Finch West Line <\/a>6, and more driving sustained debate, speculation, and on-the-ground reporting throughout the year.\u00a0<\/p>\n At the same time, fascination with ever-taller buildings remained strong, as threads tracking Pinnacle One Yonge<\/a>, One Bloor West<\/a>, Concord Sky<\/a>, and other \u2018supertall\u2019 projects consistently drew engagement. Architectural interest also ran deep, with ongoing discussion around Forma<\/a>, designed by the late Frank Gehry. In all, transit, height, and architecture together defined Forum and UrbanToronto activity in 2025.<\/p>\n Starting things off, Forum discussion tracked the transformation of the First Ontario Centre in Hamilton into the TD Coliseum<\/a>, with members weighing exterior identity updates and interior fit-out details as the renovated venue reopened with major events.<\/p>\n 25. TD Coliseum Renovations<\/a><\/p>\n 24. Sugar Wharf Condos Phase 2<\/a><\/p>\n 23. Pinnacle Lakeside Residences (Phase 1)<\/a><\/p>\n 22. The Well<\/a><\/p>\n The Line 5 West Extension thread heated up as Metrolinx launched final tunnelling on the Crosstown West Extension, with updates on the last 500-metre underground segment by Weston Road, sequential excavation progress, and viaduct construction across Eglinton Flats beside the Humber River.<\/p>\n 21. Eglinton Line 5 Crosstown West Extension<\/a><\/p>\n 20. One Delisle<\/a><\/p>\n 19. Cherry House at Canary Landing<\/a><\/p>\n 18. GO Transit Electrification<\/a><\/p>\n Interest in The Whitfield<\/a> continued as the tower neared completion, with forum photos documenting mechanical penthouse cladding, balcony guard installation, and the dismantling of its crane.<\/p>\n 17. The Whitfield<\/a><\/p>\n 16. Scarborough Subway Extension<\/a><\/p>\n 15. 8 Elm<\/a><\/p>\n 14. Ookwemin Minising<\/a><\/p>\n The Hurontario\u2013Main Line 10<\/a> thread remained busy as construction carried on. No firm opening date is now fuelling debate over shifting scope, transparency, while the Finch West line’s opening is driving questions about what operational performance might be once service begins in a couple years.<\/p>\n 13. Hurontario\u2013Main Line 10<\/a><\/p>\n 12. Lower Don Lands Redevelopment<\/a><\/p>\n 11. Concord Sky<\/a><\/p>\n 10. Alto High Speed Rail<\/a><\/p>\n 9. Union Station Revitalization<\/a><\/p>\n 8. KING Toronto<\/a><\/p>\n Cladding progress at KING Toronto<\/a> accelerated through late 2025, with the installation of prefabricated glass-block glazing assemblies advancing across most exterior elevations for the Bjarke Ingels Group<\/a>\u2013designed project in King\u2013Spadina.<\/p>\n 7. CIBC SQUARE<\/a><\/p>\n Finch West Line 6 dominated late-year discussion as slow running times shocked everyone, bringing calls for stronger signal priority that platformed debate on how the new line should function, and the implications for the broader streetcar network and upcoming Line 5.<\/p>\n 6. Finch West Line 6<\/a><\/p>\n 5. Forma<\/a><\/p>\n Ontario Line 3<\/a> remained a constant Forum focus through 2025 as members tracked construction progress across the bridges and particularly deep stations along the route.<\/p>\n 4. Ontario Line 3<\/a><\/p>\n 3. Pinnacle One Yonge<\/a><\/p>\n 2. One Bloor West<\/a><\/p>\n Eglinton Line 5 dominated all discussions on UrbanToronto as testing continued and an opening date remains clouded, with Forum chatter increasingly centred on whether the long-delayed Crosstown could deliver the speed and reliability promised after 15 years of construction.<\/p>\n 1. Eglinton Line 5<\/a><\/p>\n * * *<\/p>\n UrbanToronto’s research and data service,\u00a0UTPro<\/a>, provides comprehensive data on construction projects in the Greater Golden Horseshoe\u2014from proposal through to completion. Other services include\u00a0Instant\u00a0Reports<\/a>, downloadable snapshots based on location, and a daily subscription newsletter,\u00a0New Development Insider<\/a>, that tracks projects from initial application.\u200b<\/p>\n
January 05, 2026 by Anthony Teles<\/span><\/span>\u00a0\u00a0
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\u00a0419\u00a0<\/span><\/div>\nDigging Deep into Discussion: UrbanToronto’s Hottest 25 Threads of 2025<\/span><\/p>\n<\/div>\n
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