Brandon Donnelly

Daily insights for city builders, delivered every morning at 6 AM ET. I’m Brandon Donnelly — a Toronto-based real estate developer and founder of Globizen. I’ve been writing here since 2013.

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Category: Planning

  • Tasty data

    A recent study and research paper by the MIT Senseable City Lab — called, Tasty Data — has discovered that restaurant data alone can be used to accurately predict location-based factors such as daytime population, nighttime population, number of businesses, and overall consumer spending within a specific geography.

    They started by pulling restaurant data from Dianping (Chinese equivalent of Yelp) for 9 Chinese cities: Baoding, Beijing, Chengdu, Hengyang, Kunming, Shenyang, Shenzen, Yueyang, and Zhengzhou. They then paired their Dianping data with other available data (such as aggregated mobile phone data) and used machine learning to search for any correlations.

    Below is a diagram of “nighttime population” in Beijing. They are using a 3 km2 grid.

    If you’re a regular reader of this blog, you’ll know that I like these kinds of studies. By 2020, it is estimated that 1.7MB of data will be created every second by every person on earth. The numbers are staggering. And yet, “official” data sources, such as census data, remain slow and fairly limited. Studies like this one continue to show us what’s next.

    Image: MIT Senseable City Lab

  • #BestStreetInTheWorld

    The below Twitter thread, initiated by Brent Toderian, is a great collection of some of the “best streets in the world.”

    I would encourage you to click through and have a scroll. The one thing that you’ll likely notice about almost all of the contributions is that the streets tend to be fairly dense/urban and they tend to be oriented around the pedestrian. No surprise there.

    My only qualm with some, but not all, of these streets is that — while beautiful from an urban design standpoint — many of them can feel quite touristy and/or commercially generic. They are the street you go to when you’re visiting the place, but they are perhaps lacking in urban authenticity.

    I don’t mean to take anything away from the beautifully designed streets in the above thread. In fact, some of them aren’t at all commercial and are simply magical places to be — period, full stop. See, for example, La Condensa (neighborhood) in Mexico City.

    My argument is simply that the natural cycle of cities and neighborhoods sometimes means that the best streets for new ideas and small businesses are maybe not the most beautiful ones. Part of this is a function of rents and part of this is function of the fact that the best cities are constantly reinventing themselves.

  • Average living space per person in Hong Kong

    This recent NY Times article — which makes the case that the current protests in Hong Kong are at least partially a result of inequality — has a pair of interesting diagrams that speak to the city’s tight housing market.

    The first compares average living space per person in Hong Kong to Paris and New York City. New York City appears palatial compared to the illegally subdivided apartments that are discussed in the article.

    The second looks at housing affordability as a multiple of median household income. Hong Kong is over 20x. I am curious what median incomes were used for each of the cities. A small denominator makes the multiples look worse.

    In this chart, New York also includes the entire metropolitan area, which would help to improve its affordability ranking. So one could argue that this isn’t really a fair comparison.

    At the same time, none of this changes the fact that Hong Kong has some of, if not, the most expensive housing in the world.

    Images: NY Times

  • What I like about Sidewalk Labs’ generative design tool

    Last week I went for a tour of Sidewalk Labs’ “307” workshop here in Toronto. In it they have a generative urban design tool that allows you to toggle things like density, building shape, building height, the amount of green space, the distribution of green space, and so on.

    Perhaps some of you have seen it or used it before. The controls look like this:

    After you’re done playing around with the dials, you are then able to provide feedback on the design that you’ve birthed through two very simple feedback buttons. One is a happy face. And the other is a sad face. (I wonder if the placement of these two buttons has any impact on responses.)

    What I like about this tool is that it immediately imposes a certain degree of reality and it forces you, the participant, to acknowledge the various trade-offs that need to be considered when you’re designing and planning a city.

    For example, if you want lots of parks and public spaces, but you want to hold population density constant — perhaps because you’re trying to make use of an investment made in transit infrastructure — well then you’ll need to accept taller buildings.

    A very similar thought process goes into each and every development pro forma as we all try and manage the myriad of competing interests. But I guess this is also true of life in general. There are gives and there are takes.

  • Skateboarding to debut at the Summer Olympics in Tokyo

    The 2020 Summer Olympics, which will be held in Tokyo, have added 5 new sports, one of which is skateboarding. As someone who grew up skateboarding as a teenager, and is all too familiar with being chased out of public spaces, this lends a great deal of legitimacy to the sport.

    It’s hard to think of a sport that is more closely connected with architecture and, more specifically, public architecture. Curbed’s recent long-form article about “the public spaces that shaped skateboarding” is a good reminder of that. Here is an excerpt (EMB refers to Embarcadero Plaza in San Francisco, which was previously known as Justin Herman Plaza):

    When skateboarding debuts at the Tokyo Olympics next summer, some three decades after the first polyurethane wheels hit the bricks at EMB, it will have completed the long, improbable trip from criminal act to social and institutional acceptance. But even as an Olympic sport, skateboarding will remain a direct physical response to the varied terrain of American public architecture.

    Interestingly enough, one could go on to argue that the history of skateboarding is really steeped in the adoption of public spaces that had, in many cases, failed to serve their intended purpose. In other words, skateboarders were often the only people using these urban spaces:

    “What made Justin Herman Plaza attractive to skateboarders and work for skateboarders was its inappropriateness to the traditional city scale and function,” King says. “You had all these planners and architects in the 1950s and ’60s saying cities need these grand, celebratory spaces—and they really didn’t.” But apparently skaters did.

    Welcome skateboarding to the 2020 Summer Olympics in Tokyo.

    Photo by Frans on Unsplash


  • The scale and scope of urban tech

    “Cities have become the basic platforms for global innovation and economic growth, supplanting the corporation as the fundamental organizing unit of the contemporary economy.” -Richard Florida

    Richard Florida and Patrick Adler of the Martin Prosperity Institute here in Toronto have been doing some research on what they are calling “urban tech.” They define it as encompassing the following industry sectors: co-living and co-working; mobility; delivery; smart cities; construction tech; and real estate tech.

    Here are the largest urban tech startups based on the amount of VC investment they have received:

    Below is how the space breaks down by sector. Mobility / ride hailing is the behemoth, receiving 61% of all VC investment. Food delivery is next. And “proptech” is at the bottom.

    Finally, here are the top “urban tech” cities. Beijing is right up there with San Francisco.

    For more information on the study, click here.

    Tables: CityLab

  • Toronto should placemake a “sports alley”

    Being a sports fan is like having a bipolar disorder. The highs are high. And the lows are low. But right now — with the Toronto Raptors having clinched their first ever NBA Finals appearance — we are all on a high. Though the job is far from over, this city has waited 24 seasons for this moment. Turns out, all we were missing was one of the greatest basketball players of all time.

    It’s pretty amazing to see how far we have come both as a franchise, and as a global city. When Scotiabank Arena was completed in 1999, it, and the surrounding area, looked like this. On Saturday night after the win, it looked like this, a veritable “sports alley.” I have long thought that Bremner Boulevard should be placemade into a sports alley connecting Scotiabank Arena (on the east) and the Rogers Centre (on the west).

    From now until this Thursday, all is right in the world. Enjoy it Toronto, and Canada. Masai Ujiri made a bet that I think most, if not all, of us would agree has paid off. Had it not, Raptors fans across the country would be criticizing him for trading away our franchise player. But that’s par for the course in this bipolar world of sports fandom.

  • How developers shape public life

    The most recent episode of The Urbanist is about the role of private developers in shaping public spaces and public life within our cities. How do you balance private and public interests?

    Much of the discussion focuses on the redevelopment of King’s Cross in London, which is generally considered to be a successful example of large-scale, developer-led, urban regeneration. Andrew Tuck is less complimentary of Hudson Yards in New York.

    One point that I found interesting was the remark that modern zoning tends to force buildings apart. It creates more in-between space. The result is that we are losing some of the more intimate public spaces found in older neighborhoods.

    To listen to the full 30 minute episode, click here.

    Photo by Josh Edgoose on Unsplash (King’s Cross, London)

  • Beautiful cities are growing faster than ugly ones

    People move to cities for a whole host of reasons, whether it be for more money, more affordable housing, and/or better weather. The fastest growing cities in the US, for example, tend to be in the south where it’s warmer and where housing supply is more elastic. However, we also know that “consumer leisure amenities” increasingly factor into this decision.

    A new research paper by Gerald A. Carlino (Federal Reserve Bank of Philadelphia) and Albert Saiz (MIT) has tried to quantify this relationship by looking at the perceived beauty of a place. To do this, they analyzed the number of tourist visits and the number of “crowdsourced picturesque locations” in a metro area. Read: Instagrammable moments.

    What they found was that beauty, not surprisingly, matters (much like it does in other facets of life). Between 1990-2010, metro areas that were perceived as being “twice as picturesque” experienced greater population growth — about 10 percentage points higher. These metro areas also attracted a higher percentage of educated individuals and experienced greater housing appreciation.

    If you’d like to download a copy of Beautiful city: Leisure amenities and urban growth, click here.

  • A new way to grow islands

    MIT’s Self Assembly Lab and Invena (which is an organization based out of the Maldives) are trying to invent a system of underwater devices that naturally harness wave energy to restore and/or create new beaches, sandbars, and islands. The hope is that this line of thinking could be scaled up and eventually used a response to sea level rise, as well as other coastal challenges.

    Here’s a short video explaining the initiative:

    With over 40% of the world’s population supposedly living in a coastal area, this is a problem that will need to be addressed. Already we are seeing these concerns start to rear their head in the real estate markets of some particularly vulnerable cities. The team installed their first field experiment in the Maldives this past February and a second one is expected in Q4-2019.

    For more information on the “Growing Islands” project, click here.