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A crane now stands over the future site of a building dubbed 316 Junction in Toronto’s Junction Triangle area. Developed by Marlin Spring Developments and Trolleybus Urban Development and designed by Jahan Mehr Architects, the 26-storey purpose-built rental building is advancing toward construction on Campbell Avenue north of Dupont Street, following months of excavation and shoring work that began last year.
In September, 2025, demolition and site clearing had been completed, leaving the development parcel largely levelled and prepared for excavation. Two large green drilling rigs are positioned near the north and south ends of the site, where crews are advancing the shoring system that will support the excavation required for the project’s two levels of underground parking. Nearby, excavators and compact earthmoving equipment work around stockpiled excavated earth at the northwest corner, while lengths of steel casing are staged at the south end. Temporary construction fencing encloses the property along Campbell Avenue and the surrounding laneways.
From the site’s southwest corner in February, 2026, excavation had advanced substantially, with the deepest portions of the dig extending toward the north and west property lines. Timber lagging was installed between soldier piles along the north shoring wall. Multiple excavators operate at different elevations throughout the excavation, while haulage and support equipment remain active at grade. Temporary fencing and guardrails secure the site perimeter.
In March, 2026, excavation for the project’s two-level underground garage was nearing completion, enclosed by shoring walls reinforced with tiebacks. A temporary earth ramp remains in place along the east side of the site, providing construction access between street level and the excavation floor, where a tracked excavator is positioned partway down the slope. At the base of the excavation, telehandlers, equipment, and construction materials are staged across the prepared subgrade.
Looking across the south end of the site in April, 2026, cylindrical steel rakers brace the excavation at the southwest and southeast corners, providing lateral support to the shoring system to resist pressure from the earth behind them along the perimeter walls. Excavators continue fine grading and earthmoving operations, with one machine working from grade and another positioned on a temporary soil bench within the excavation to bring materials to the surface to be hauled away. Near the lower-left corner, rebar has been installed as the first stage in the eventual forming of a circular column, while equipment and materials remain staged across the excavation floor.
This month, looking northwest from Campbell Avenue, a newly erected crane now rises above the site. The crane stands near the east side of the property behind construction hoarding and fencing. In the foreground, a tracked excavator remains on site as below-grade work continues, while construction staging areas and site facilities occupy portions of the perimeter.
Upon completion, 316 Junction will rise 88.35m while delivering 314 rental homes, including 63 affordable rental units alongside market-rate and rental replacement units.
UrbanToronto will continue to follow progress on this development, but in the meantime, you can learn more about it from our Database file, linked below. If you'd like, you can join in on the conversation in the associated Project Forum thread or leave a comment in the space provided on this page.
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