Brandon Donnelly
Daily insights for city builders. Published since 2013 by Toronto-based real estate developer Brandon Donnelly.
Brandon Donnelly
Daily insights for city builders. Published since 2013 by Toronto-based real estate developer Brandon Donnelly.
Last year Nolan Gray mapped out “the cities of the world where you don’t need AC or heat.” And just recently he updated his data with the help of Guardian Cities for their “sweltering cities” series. As part of the study, they projected out average temperatures, in both the summer and winter, to 2059, showing which cities may become more dependent on air conditioning. The answer looks to be many.
In his original study, Gray had 9 climatic categories, all of which were based on average high and low temperatures throughout the year. Category 1 was you definitely don’t need AC or heat. These cities are essentially perfect year round. And category 9 was you definitely need heat and AC. These cities are basically the worst places on earth to occupy from a climate perspective.
Here is that climate classification system in lovely chart form (note his caption):
The climatic utopias ended up being places like Bogotá, Guatemala City, Lima, Mexico City, San Diego, São Paulo, and Sydney. The worst places were the southeastern United States, Central Asia, and northern East Asia.
But one factor that is not included in the study is humidity, which Gray rightly points out has a meaningful impact on comfort. Toronto, for example, is classified in his system as category 7. Heat needed. But AC definitely not needed. Personally, I would bump us up to category 8: AC preferred, but not needed.
Still, this is an interesting study. There are relatively few cities with so-called perfect climates. And I have always found these sorts of climates fascinating because they empower a very different kind of relationship to outside spaces.
The Guardian recently published this reminder that the real population growth in the world today is happening in Asia and Africa. The article is called, “The 100 million city: is 21st century urbanisation out of control?” Much of the data is from this 2016 paper by Daniel Hoornweg and Kevin Pope, which projected the populations of the world’s biggest cities by 2100.
The standout example is that of Lagos, Nigeria, which went from under 200,000 people in the 1960s to an estimated 20 million people today. Though, I would imagine that the ubiquity of informal settlements makes it difficult to come up with an accurate number.
Still, it is one of the world’s top 10 largest cities and, by 2100, it may be the largest city in the world. The Guardian described the population as young, fertile, and increasingly urban. The median age in Nigeria is 18 and the fertility rate for the content is 4.4 births per woman.
I am mentioning all of this today because I think it grants some perspective. This is an immense city building challenge, not only because of the unprecedented growth rate, but also because it remains largely poor. Lagos, a city, may add more than 2.2x the population of Canada, a country, during the balance of this century.
I just stumbled upon an older (2014) article by Oliver Wainwright in the Guardian called, The truth about property developers: how they are exploiting authorities and ruining our cities. In case the title didn’t give it away, it’s a scathing article about the current state of real estate development and city building.
Here’s an excerpt:
“Across the country – and especially in superheated London, where stratospheric land values beget accordingly bloated developments – authorities are allowing planning policies to be continually flouted, affordable housing quotas to be waived, height limits breached, the interests of residents endlessly trampled. Places are becoming ever meaner and more divided, as public assets are relentlessly sold off, entire council estates flattened to make room for silos of luxury safe-deposit boxes in the sky. We are replacing homes with investment units, to be sold overseas and never inhabited, substituting community for vacancy. The more we build, the more our cities are emptied, producing dead swathes of zombie town where the lights might never even be switched on.”
Now, I’m not that familiar with the London market, so I can’t really comment on the dead swathes of zombie town. But I did enjoy the insights into the UK entitlement process.
At the same time, my overarching thought as I read through the article was that I don’t believe that making money and doing what’s right need to be mutually exclusively. You can do both in development and in business. Making money as a developer does not mean you have to build shitty buildings.
Part of the development game is managing an endless number of competing tensions. And profitability and responsible city building is just one of them. Of course, you have to want to do the right thing in the first place.
Last year Nolan Gray mapped out “the cities of the world where you don’t need AC or heat.” And just recently he updated his data with the help of Guardian Cities for their “sweltering cities” series. As part of the study, they projected out average temperatures, in both the summer and winter, to 2059, showing which cities may become more dependent on air conditioning. The answer looks to be many.
In his original study, Gray had 9 climatic categories, all of which were based on average high and low temperatures throughout the year. Category 1 was you definitely don’t need AC or heat. These cities are essentially perfect year round. And category 9 was you definitely need heat and AC. These cities are basically the worst places on earth to occupy from a climate perspective.
Here is that climate classification system in lovely chart form (note his caption):
The climatic utopias ended up being places like Bogotá, Guatemala City, Lima, Mexico City, San Diego, São Paulo, and Sydney. The worst places were the southeastern United States, Central Asia, and northern East Asia.
But one factor that is not included in the study is humidity, which Gray rightly points out has a meaningful impact on comfort. Toronto, for example, is classified in his system as category 7. Heat needed. But AC definitely not needed. Personally, I would bump us up to category 8: AC preferred, but not needed.
Still, this is an interesting study. There are relatively few cities with so-called perfect climates. And I have always found these sorts of climates fascinating because they empower a very different kind of relationship to outside spaces.
The Guardian recently published this reminder that the real population growth in the world today is happening in Asia and Africa. The article is called, “The 100 million city: is 21st century urbanisation out of control?” Much of the data is from this 2016 paper by Daniel Hoornweg and Kevin Pope, which projected the populations of the world’s biggest cities by 2100.
The standout example is that of Lagos, Nigeria, which went from under 200,000 people in the 1960s to an estimated 20 million people today. Though, I would imagine that the ubiquity of informal settlements makes it difficult to come up with an accurate number.
Still, it is one of the world’s top 10 largest cities and, by 2100, it may be the largest city in the world. The Guardian described the population as young, fertile, and increasingly urban. The median age in Nigeria is 18 and the fertility rate for the content is 4.4 births per woman.
I am mentioning all of this today because I think it grants some perspective. This is an immense city building challenge, not only because of the unprecedented growth rate, but also because it remains largely poor. Lagos, a city, may add more than 2.2x the population of Canada, a country, during the balance of this century.
I just stumbled upon an older (2014) article by Oliver Wainwright in the Guardian called, The truth about property developers: how they are exploiting authorities and ruining our cities. In case the title didn’t give it away, it’s a scathing article about the current state of real estate development and city building.
Here’s an excerpt:
“Across the country – and especially in superheated London, where stratospheric land values beget accordingly bloated developments – authorities are allowing planning policies to be continually flouted, affordable housing quotas to be waived, height limits breached, the interests of residents endlessly trampled. Places are becoming ever meaner and more divided, as public assets are relentlessly sold off, entire council estates flattened to make room for silos of luxury safe-deposit boxes in the sky. We are replacing homes with investment units, to be sold overseas and never inhabited, substituting community for vacancy. The more we build, the more our cities are emptied, producing dead swathes of zombie town where the lights might never even be switched on.”
Now, I’m not that familiar with the London market, so I can’t really comment on the dead swathes of zombie town. But I did enjoy the insights into the UK entitlement process.
At the same time, my overarching thought as I read through the article was that I don’t believe that making money and doing what’s right need to be mutually exclusively. You can do both in development and in business. Making money as a developer does not mean you have to build shitty buildings.
Part of the development game is managing an endless number of competing tensions. And profitability and responsible city building is just one of them. Of course, you have to want to do the right thing in the first place.
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