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Work at Mizrahi Developments' The One is moving along and has recently seen activity on the 7th floor, which will be the first floor of hotel suites. After the concrete pour of the walls and columns on the building's 6th floor that took place last month, floor forms were put in place, rebar was laid, and conduits were installed, and now we've got a look from above at what that looks like before the concrete is poured.
Getting closer, we can see rebar installation in various states of completion. Generally, and maybe obviously, where there is plenty of rebar, the installation is complete, where it is thinly laid there is more still to add. On the left side of the image we can see bundles of rebar waiting to be taken to wherever it is need.
Along with the rebar, crews were installing conduits for the 7th level floor slab. The conduits can be seen below reaching from the west side of the floor to the centre. The conduits — flexible when laid out, but which will remain forever in place once the poured concrete cures — are there to protect and route power and data cables to wherever they are needed throughout the building. The reason we can see so many conduits on this level is that the cables the conduits will carry are transferring here from the lower elevator core to the west, to the upper elevator core in the centre of the tower.
Also visible in the images above are orange circles of various sizes around the area. These are temporary caps on pipes, there to prevent concrete from getting in the pipes during the pour. While some of these pipes are destined to be used for bathroom facilities on the 7th level, others will be extended to higher floors.
Another step forward since our last story is happening at the corners of the building. The tower floor-plates will be square when they are finished, but currently there are notches in the four corners. The corners won't have large columns to hold up the floor slabs — the design calls for windows with uninterrupted views here — so instead steel braces have been installed to hold them. If you take a close look, the rust-coloured braces have brackets on them which will affix to the floors slabs near the corners, supporting the floors from above.
A day after the images above were shot. the concrete was being poured. Here's what it looked like during the pour:
Here's what the completed 7th floor looks like now:
The white circles you can see in the floors are where a thin layer of concrete has quickly dried over the orange caps. The concrete can be easily broken there to finish the plumbing work on this level, or to extend larger pipes further up the building.
As the 7th level will be the first of the repeating hotel suite levels, forms that will be built on this level for the walls and for the 8th floor slab will be able to be reused a floor higher throughout the hotel levels, so construction should pick up the pace accordingly. New forms will be needed again for the mechanical levels at 17 and 18, and for the condo levels which start at 19.
Designed by UK-based architects Foster + Partners with Toronto's Core Architects, The One was approved at a height of 85 storeys, 308.6 metres. The building is among the pair of projects currently contending for the title of Canada's tallest building, along with the 312.5-metre SkyTower at Pinnacle One Yonge, which is now in the early stages of construction only a couple of kilometres to the south.
Mizrahi Developments has applied for an increase in height and density for The One to rise to 94 storeys and 338.3 metres high. If the increase is permitted, The One would take the record as the tallest building in the country.
More information on this development will come soon, but in the meantime, you can learn more from our Database file for the project, 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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