Category: Architecture

• How efficient core design unlocks small-footprint infill housing

  

  In today’s edition of How Does Europe Build Such Nice Social Housing?, let’s look at this 8-home project in Pantin (outside of Paris) by Atelier Fuso. (Credit to Philip Oldfield for the tweet that alerted me to the project.)

  First, some stats. The project is 6 storeys (R+5 in European nomenclature), so it’s exactly the kind of housing scale that is contemplated on an as-of-right basis along Toronto’s Major Streets. It has 394 m2 of residential area and 34 m2 of ground-floor commercial. So, about 4,607 square feet of total area. Interestingly enough, this is less than the total area of most infill multiplex projects in Toronto. That tells us the site is compact.

  Second, I’d like to draw your attention to Atelier Fuso’s drawings:

  

  

  They combined all of the project’s elevations and plans into single drawings, which is a neat way of showing you the relationship.

  Lastly, let’s look at the project’s costs. The architect’s website shows €1.6M. Whenever I see a cost figure like this, I always assume it’s just the hard costs, and it excludes softs. Whatever the case, €1.6 million to CAD = C$2,544,160. Divided by 4,607 square feet = $552 psf. That feels high for just the hard costs. Are the soft costs less or more than here? I don’t know.

  But once again we are reminded that part of the reason Europe is able to build such nice mid-rise buildings is that they’re able to build on extremely compact sites. And the reason they’re able to build vertically on such compact sites is because they’re able to design building cores that look like the one shown in the above drawings.

  Urban housing like this is comprised of leasable and non-leasable areas. The former generates revenue, and the latter does not. The more developers are able to optimize and reduce the non-leasable areas, such as the core, the more they can build small. That’s a positive thing for cities.

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  Image and plans from Atelier Fuso

  2026.10.01

• Squatters, not planners, created Bologna’s beloved porticoes

  

  Bologna, I’m told, is a city famous for its colonnades or porticoes. I’ve never been, but it’s a city that’s on my list. Bologna has 62 km of covered walkways, 40 km of which are in the city centre, and they are designated as a UNESCO World Heritage Site. They provide shade in the summer, and protection from rain during the winter. But how did this happen? What’s the legal structure underpinning them?

  Bologna’s porticoes go back roughly a thousand years and, interestingly enough, they are a result not of some grand, top-down master plan, but of a ground-up, market response. Bologna was a dense, walled city, with a growing population. Space was at a premium and so unscrupulous developers and landlords started encroaching into the public right-of-way and cantilevering their buildings outward. Few people were apparently fussed.

  The earliest evidence of a portico in Bologna seems to date back to the year 1041 — an example of private use of public land. But over time, the utility of these colonnades started to be more broadly appreciated. Not only did they protect pedestrians from the elements, but they allowed craftsmen to work outside of their workshops with natural light and with similar shelter.

  Gradually, porticoes became obligatory (at least in some areas and on some sites). This then transferred the porticoes from private use of public land to public use of private land. Developers were forced to build them.

  My understanding is that the vast majority of the porticoes exist today with this legal structure. The land is private, but the public enjoys an access easement in perpetuity. This means that private owners must pay to maintain these colonnades. It’s an example of what we often call here in Toronto a POPS space — a privately-owned, publicly accessible space.

  These spaces took many centuries to become codified, but what I find most interesting is that they are a product of ground-up innovation. A more contemporary example of this is Tokyo, which is often considered to be an example of bottom-up planning. Here’s a book on the topic called Emergent Tokyo — Designing the Spontaneous City.

  Turns out, Bologna’s beloved colonnades weren’t the product of visionary planning, but of Medieval squatters.

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  Photo by Ryan Ladd on Unsplash

  2026.09.19

• The final release at One Delisle

  

  We’ve just launched a new One Delisle Instagram account (@one_delisle) and, as part of it, a new video series. Here’s our most recent video, featuring Jeanne Gang of Studio Gang. We also filmed a new video this week that I think is going to be spectacular. Hint: It involves a drone, house music, and a beautiful summer-in-September sunset. So if you aren’t yet following One Delisle, you may want to do that now.

  This week, we also introduced The Reserve Residences, which is our final release for the project. This is a collection of only ten homes on the highest floors of the building. All of these suites feature generous 2–3 bedroom floor plans of up to 3,600 square feet. This is the final opportunity to own before occupancies begin in spring 2027. For more info or to book a site tour, email sales@onedelisle.com.

  2026.09.18

• Housing on the Line

  

  

  

  

  One of the fundamental truths about cities is that transportation and land-use planning are integral to one another. The most successful cities understand this and build density on top of transit, and build transit where density can and will go. See, once again, the Tokyo model. It’s for this reason that I think the Superkül-led conceptual project called Housing on the Line is an important one for Toronto. While the projects are speculative, they remind us that many of our transit stations are severely undeveloped, including ones we’ve only recently built. Why?

  Description:

  Housing on the Line, a conceptual project and architectural exhibition conceived and initiated by Superkül, will open to the public next Thursday, September 24th in Liberty Village. Developed in collaboration with six other firms – COMN Architects, Dubbeldam Architecture + Design, Gabriel Fain Architects, StudioAC, Studio VAARO, and Suulin – the project proposes speculative designs that integrate multi-unit residential buildings with smaller existing subway station sites along TTC Line 2 Bloor-Danforth. Each firm’s proposal treats a different subway station along Line 2 as a creative canvas for imagining innovative typologies and context-appropriate design that delivers human-scale character, enhanced amenities, and community connectivity.

  Details:

  Housing on the Line | Opening Reception
  Date: Thursday, September 24, 2026
  Time: 6:00–9:30 pm
  Location: The Bakery, 2 Fraser Ave, Toronto
  RSVP: adele@superkul.ca

  If you can’t make the opening reception next Thursday, you can also visit between September 25-27, during the hours of 10am-5pm.

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  Project credits (in order): Superkül, Studio VAARO, Gabriel Fain Architects, Dubbeldam Architecture + Design

  Image credits: All renderings by Aron Lorincz Ateliers

  2026.09.16

• Raw meets refined

  I love how Saint Laurent’s creative director, Anthony Vaccarello, has taken a form of brutalism — corduroy-imprinted concrete and generally raw and exposed materials — and elevated it to high fashion. It’s a perfect example of “raw meets refined.” And you’ll find this approach in its stores all around the world, including in Toronto on Bloor Street. For me, it’s also a great microcosm of Paris. This is a city with a deep, rich history, but one that isn’t afraid to disrupt that history and look forward when it makes sense to do so.

  

  

  

  

  

  

  2026.09.06

• Window-to-wall ratios and density in Paris

  One of the reasons Paris’s built form works so well is that the buildings aren’t all glass. The window-to-wall ratios afford a degree of privacy, despite the high densities and minimal separation distances. Imagine how different the city would feel if this wasn’t the case.

  

  

  

  

  

  2026.09.02

• One of Canada’s wealthiest families unveils bold vision for St. Clair Square

  

  This week, Wittington Properties (which is owned by Canada’s Weston family) unveiled a bold vision for Yonge and St. Clair in midtown Toronto, which they are now calling St. Clair Square. Alex Bozikovic wrote about it, here, in the Globe and Mail.

  Here are some of the key things to know:

  • 1.6 million square feet of new construction alongside the existing shopping complex and two office towers.
  • Kohn Pedersen Fox is leading urban design and architecture for two of the three towers (37 and 46 storeys tall), as well as a private amenity building called the Ravine Club.
  • Herzog and de Meuron are the architects for the third tall building, which will be 24 storeys and house only 72 large condominium residences (you all can do the rough math on the average suite size).
  • A flagship, mass-timber cultural building (bottom right in the above AI rendering) designed by Canadian design firms Omar Gandhi and Bruce Mau Design. This building will replace Delisle Court (on the west side of Yonge, north of One Delisle) and is expected to house a 300-seat performance hall, a cafe, and potentially a new Toronto Public Library.
  • A large car-free public square (in the shape of an “L”) designed by PUBLIC WORK will “define the area” and is expected to be lined with small shops and restaurants no larger than 1,000 square feet each (fine-grained).
  • Construction is expected to begin in 2027 — on the entire complex.

  Herzog and de Meuron is one of my favourite architecture firms, and we have spoken to them over the years about potential projects in Toronto. They have yet to build a project in Canada. Though nothing ever came to fruition, I’m excited that they’re working at Yonge & St. Clair alongside such an incredible design team.

  In my humble opinion, our project One Delisle is one of Toronto’s next architectural landmarks (the building on the right in the above rendering). St. Clair Square promises to add to this rich context and layer on some cultural cachet with its flagship building. We should all be excited about the future of Yonge & St. Clair.

  Congratulations to the team!

  2026.08.29

• A 6-storey boutique hotel proposed for Kensington Market

  Fun fact: The bike I used throughout most of undergrad at the University of Toronto was a jaunty-looking red thing that I purchased from Bikes on Wheels in Kensington Market. I used it every day. It was a workhorse.

  And when I eventually moved to Philadelphia for grad school, I took it with me. Let me tell you, I probably stood out like a sore thumb riding that thing through the depths of West Philly. But then it got a flat tire and it sat in the corner of my apartment for the rest of the school year. I couldn’t tell you what happened to it after that.

  This is a mostly irrelevant story except that a development application was recently filed for a site in Kensington that includes the former home of Bikes on Wheels. It’s a new six-storey boutique hotel designed by Joel Gerber Architect. The design looks great, and I like the yellow pitched-roof top hat that comes with it. It will look fun on the Kensington skyline.

  

  But even more importantly, this is exactly the kind of infill development that Toronto needs, all over. We should be doing everything we can to reduce the barriers to building at this scale. It’s not easy, which is one of the reasons why we are not seeing a flurry of 6-storey buildings all along our avenues, even though they are technically now permissible.

  So, whoever the team is behind this project, I wish them a speedy and straightforward approval.

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  Project rendering via blogTO

  2026.08.27

• How AI is transforming architectural workflows

  I recently came across an online post criticizing a Canadian Tire ad that was very clearly created by AI. The text was illegible (most AI models aren’t excellent at text). The model’s face was plasticky. And everyone was piling on, saying things along the lines of: “Shame on Canadian Tire. They should have hired a Canadian model, photographer, and graphic designer.”

  While I can appreciate where this is all coming from, the reality is that the cat is out of the bag. As I’ve said before: What is real anymore? It doesn’t matter. We all have to adapt. I have, for example, noticed a dramatic change in the architectural workflow on our projects. We are now seeing an infinite number of visualizations throughout the design process, and that is making it a lot easier to iterate and refine ideas. So much for the quick blue foam models.

  On some projects, where we have a collaborative working relationship with the design team, we now send AI renderings back and forth in group chats: “I’ve changed the material on these soffits and modified the brick coursing. What do you think?” None of it is perfect. But neither were the physical models and other tools that we used to rely on to test ideas.

  If anything, it’s overwhelming in the best possible way. The creative possibilities are endless.

  2026.08.26

• How Junction House built laneway towns for urban families

  

  Junction House was designed with 7 laneway towns on the north side of the building. The above photo is from 2023, right after we installed the wayfinding signage, which is why you can see the construction fencing sitting in the laneway. Alongside Superkul (architects), we made the design decision to incorporate ground-related towns for two reasons.

  First, we are supporters of laneway housing, and one of our city-building agendas is to find ways to revitalize and animate these spaces in Toronto. Incorporating laneway towns was a natural way to do this.

  Second, we were able to tuck these two-storey suites into the same height as our ground-floor retail on the south side. This meant that, even though our sales team was advising us that these would likely sell for a relatively low price per square foot compared to the rest of the building, it was the right business decision. It was still more accretive than additional single-level retail (or retail with a far less valuable mezzanine space) or some other unproductive back-of-house space.

  

  As a development aside, we originally designed these towns to be raised up from the laneway, accessible via a few steps. But during the rezoning process, the city asked us to shave down the overall height of the building to meet some symbolic height in metres that the local City Councillor demanded we achieve. It was frustrating, but we complied, and that’s why the towns are designed the way they are.

  Looking back on these suites a few years later, I continue to believe that we made the right big-picture decision, especially because of how they are now being lived in. These suites have a very high percentage of families with young children — children who often make use of and play in the quiet laneway.

  In hindsight, this makes perfect sense. These are larger, grade-related suites that offer some degree of relative affordability. In my view, it’s further evidence that not all families want to flee to the suburbs. We just have to find ways to deliver the right kind of urban housing for them.

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  Second photo by Doublespace Photography

  2026.08.23