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Continuing to draw attention at the intersection of Yonge and Bloor streets, The One has surpassed the 50-storey mark and is approaching the third mechanical section, after recently unveiling its restored heritage facade of 774 and 776 Yonge Street. The project by Mizrahi Developments — designed by Foster + Partners in collaboration with Core Architects — is steadily progressing skywards on its way to becoming one of Canada's tallest buildings.
The structure reached 50 storeys near the end of January, another milestone after its ascension past the 150m threshold to reach skyscraper status. Seen looking north on Yonge Street, the building's south elevation of the building bears the tower yellow crane, with the plywood doors of the twin temporary hoists marking each floor just to the left. In the background to the left, 11YV can be seen, its red concrete boom pump and tower crane having risen to its 51st storey.
Gazing upwards, we are given a unique vantage point underneath the bright blue walls of the auto-climbing formwork system, with both black and yellow safety netting below. In between is one of the V-shaped hangers, canted steel members projecting outward from the super columns, repeating every six floors, providing structural support for the outer corners of the floors.
Recent progress along the south elevation has seen more cladding and insulation added to the super-columns at the first mechanical levels at the 16th storey, as the tower prepares for the installation of more exterior elements.
The One's mechanical sections break up the sequences of residential floors which generally span 18 storeys, with two-level mechanical sections inserted in between. Every six storeys, the hangers support corner plates, lending structural and visual rhythm to the facade. As the structure climbs past the 52nd floor, anticipation is building for the third mechanical section, signalling the imminent rise of two more residential sequences and additional mechanical sections.
A southeast view across Bloor Street showcases the cladding that expresses the building's robust mega-columns and hangers. Currently parked just above the cladding at the 16th through 19th floors, the black Rail Climbing System (RCS) aids in the process of installing the tower's gleaming window panels and frames. This system, applied over the west, north, and east walls, operates independently on each facade, allowing for efficient work as the building's envelop is applied, panel by panel.
Finally, an aerial shot looking west captures a recent concrete pour for the 52nd floor. The red boom of the concrete pump extends to where crews direct the current flow of fresh concrete. Within the newly poured floor, a mesh of rebar adds strength, while forms for walls and columns that will support the 53rd and subsequent floors awaits their concrete pours.
With fewer than 40 storeys to go now to reach 91, construction is well on its way to the final height of 328.4m and 647 residential 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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