110 O'Connor St | 82m | 26f | Demolition/Proposal - Page 3

rocketphish · #41 Posted **Jun 16, 2025, 2:18 PM**

This is Ottawa: How do you demolish a highrise in the middle of the city?

CBC Ottawa
June 16, 2025

A 14-storey office tower at the corner of O’Connor and Slater streets is about to be destroyed. But how do you bring down a building in such a densely packed area? Robyn Bresnahan learns about the painstaking preparation that goes into flattening a high-rise and finds out what’s set to replace it.

Listen: https://www.cbc.ca/listen/cbc-podcas...le-of-the-city

Spoonsy · #42 Posted **Jun 16, 2025, 3:06 PM**

Quote:

Originally Posted by rocketphish

This is Ottawa: How do you demolish a highrise in the middle of the city?

CBC Ottawa
June 16, 2025

A 14-storey office tower at the corner of O’Connor and Slater streets is about to be destroyed. But how do you bring down a building in such a densely packed area? Robyn Bresnahan learns about the painstaking preparation that goes into flattening a high-rise and finds out what’s set to replace it.

Listen: https://www.cbc.ca/listen/cbc-podcas...le-of-the-city

I listened, here's the relevant stuff:

- new one is mixed-use 24 story with 400-residential units

- demolition plus says their demo deadline is november 2025

- developer's timeline for the new build is occupancy by end of 2028

- there is one other building of similar size in the core planned for demolition, the city employee they were interviewing could not reveal address but said it's clad with glass

urbanforest · #43 Posted **Jun 16, 2025, 4:05 PM**

Quote:

Originally Posted by Spoonsy

I listened, here's the relevant stuff:

- there is one other building of similar size in the core planned for demolition, the city employee they were interviewing could not reveal address but said it's clad with glass

I bet the glass-clad building up for future demo is 77 Metcalfe, mentioned in another thread a few weeks ago. Are there any other likely ones?

skyscraperaccount · #44 Posted **Jun 16, 2025, 4:31 PM**

Quote:

Originally Posted by urbanforest

I bet the glass-clad building up for future demo is 77 Metcalfe, mentioned in another thread a few weeks ago. Are there any other likely ones?

77 itself was a reskin back in the 90s was it not?

rocketphish · #45 Posted **Jun 16, 2025, 4:40 PM**

The 77 Metcalfe St thread is over here:

BlueJay · #46 Posted **Jun 17, 2025, 5:54 PM**

CTV posted a quick article about this Project.

https://www.ctvnews.ca/ottawa/articl...new-high-rise/

SL123 · #47 Posted **Jun 18, 2025, 11:20 AM**

Richard Eade · #48 Posted **Jun 18, 2025, 1:33 PM**

I think that cranes are under appreciated marvels of engineering.

zzptichka · #49 Posted **Jun 18, 2025, 4:44 PM**

From the other side:

J.OT13 · #50 Posted **Jun 18, 2025, 6:33 PM**

I'm a bit sad to see this one go. I'm surprised they weren't able to make it work for residential conversion as it looks well proportioned for it. That said, I like that the proposed podium gives a nod to brutalism (though I wish it better matched this building) and appreciate that the tower portion has generous set-backs on all sides to give some breathing room (unlike Rideau's shoulder to shoulder towers).

ponyboycurtis · #51 Posted **Jun 19, 2025, 1:56 PM**

Curious what we will gain in height here. Not that you would really see it from anywhere.

24fl is usually around 75-80 meters.

J.OT13 · #52 Posted **Jun 20, 2025, 2:40 PM**

Quote:

Originally Posted by ponyboycurtis

Curious what we will gain in height here. Not that you would really see it from anywhere.

24fl is usually around 75-80 meters.

That's probably a pretty good estimate. We'll probably gain about 50% more height, considering office floors are usually taller than residential floors.

GeoNerd · #53 Posted **Jun 30, 2025, 4:45 AM**

June 29, 2025. Precast almost gone.

J.OT13 · #54 Posted **Jul 2, 2025, 1:31 PM**

Is it wrong that I'm sad to see this one go? I'm a bit surprised it wasn't conducive to residential conversion since it's a long and narrow building. Must be the mechanical and vertical circulation that caused issues.

Uhuniau · #55 Posted **Jul 2, 2025, 2:14 PM**

I liked the colonnade.

J.OT13 · #56 Posted **Jul 2, 2025, 3:12 PM**

Quote:

Originally Posted by Uhuniau

I liked the colonnade.

Yeah, we need more of that if Ottawa developers are too cheap to build underground tunnels or skywalks. New proposal seems to have an overhang at least.