Toronto 93 Ontario Street | 61.1m | 16s | Colonia Treuhand | Sweeny &Co

1Ć0

Active Member
Member Bio
Joined
Oct 19, 2023
Messages
291
Reaction score
1,059
Not sure if this has been posted on the forum yet, but Colonia Treuhand submitted a Zoning By-Law Amendment application for 79-93 Ontario Street for a 16-storey tower, allowing for 98 purpose-built rental units and commercial uses at grade.


1767710594194.png
 
This one wasn't quite finished submitting year-end.......Arch Drawings are marked January 5/26. @1Ć0 certainly keeping the news timely!

Not yet public-facing on the contemporary AIC, its available through the old AIC, here:


Arch. Firm is Sweeny

@Paclo

From the above:

1767779061194.png


1767779107468.png


And finally, a larger one from the first post in this thread:

1767779183686.png


Site Plan:

1767779242899.png


Ground Floor Plan: (Richmond Street at bottom)

1767779310618.png



Typical Floor Plan:

1767779386208.png

1767779520984.png


1767779616763.png

1767779711727.png

1767779752633.png

Elevator Ratio: 2 elevators to 98 units or 1 elevator per 49 units.
 
Are they using scissor stairs to meet the dual staircase requirement? For some reason I thought that was generally not allowed by staff or requiring a special permission?

1768932441522.png


Otherwise great unit layouts and big add to the neighbourhood. Will be our Upper (lower) East Side soon enough:D
 
Are they using scissor stairs to meet the dual staircase requirement? For some reason I thought that was generally not allowed by staff or requiring a special permission?

View attachment 710020

Otherwise great unit layouts and big add to the neighbourhood. Will be our Upper (lower) East Side soon enough:D
Scissor stairs are fine as there are two paths of egress.
scissor stairs are fine, but only work for small floorplates as there are limits as to how far a unit can be from a staircase. Larger floorplates make units too far away which means you need two stairwells to get enough coverage.

At least that's my understanding as a non-architect.
This is correct.
 
Are they using scissor stairs to meet the dual staircase requirement? For some reason I thought that was generally not allowed by staff or requiring a special permission?

A scissor "stair" is in fact two stairs, just sleeved around each other into one core.
Also a quick note - Staff do not make the call on this, it's the Ontario Building Code, unless you are referring to a plans examiner.

At a high level: a scissor stair counts as two means of egress because once you're in the stairwell, the two stairs within the stair core are separated fully such that there is a fire separation & smoke cannot pass between them.

6m is the limit for a dead-end corridor (6m down a hallway past the access to the nearest exit door) so that can create challenges if you are trying to put both of your exit stairs into one location (aka a scissor stair). On the other hand, when the floorplate gets really small, the challenge with a scissor stair is only that you keep the doors far enough apart or else you need to add a smoke door in the corridor which introduces other magnetic door latch complications (or impedes circulation.)

Hope this helps.
 
Last edited:

Back
Top