Earlier in the week, I came across this tweet about Paris: "Haussmann cracked the code on what makes a beautiful medium-density city. Why is it then that we can't replicate this all around the world? Genuine question." This is a topic that is near and dear to this blog, so I thought we should discuss it.

But before we can answer this question, I think it's important to ask whether it's even fair to call Paris a medium-density city. Paris is generally considered to be the densest city in Europe. Most sources peg Paris proper (inside the Boulevard Périphérique) at around 21,000 people per km². However, there are areas that reach over 50,000 people per km², which is dense enough to rival any big megalopolis. So, from my perspective, I would not classify Paris as medium density.

It's a high-density city.

The primary reason why this feature is so often overlooked is likely because the buildings aren't very tall. People see mid-rise buildings of 6–8 storeys and automatically assume that these must translate into some form of a medium-density city. But this is the height–density fallacy. The two do not necessarily correlate. Paris is an example of a high-density city with mid-rise buildings. But I also can think of many low-density cities with high-rise buildings.

Another reason I suspect Paris's high urban density is often missed is that it's also a highly livable and loved city. It doesn't feel that dense (even if living spaces are compact and expensive). The term density can also carry negative connotations for some. Paris, high density? It can't be. But that just helps to prove the point that density is good. You can't have urban vibrancy without it.

All of this gets at one part of the answer to our original question. Paris is not more widely replicated because building height is only one aspect of the Parisian model. Paris is not mid-rise buildings transitioning down to single-family houses. Paris is not mid-rise buildings in only designated areas. Paris is mid-rise buildings everywhere — and at very high densities.

Not every city is prepared to do that. But if you truly want to emulate Paris, then that's what it will take.

Earlier in the week, I came across this tweet about Paris: "Haussmann cracked the code on what makes a beautiful medium-density city. Why is it then that we can't replicate this all around the world? Genuine question." This is a topic that is near and dear to this blog, so I thought we should discuss it.

But before we can answer this question, I think it's important to ask whether it's even fair to call Paris a medium-density city. Paris is generally considered to be the densest city in Europe. Most sources peg Paris proper (inside the Boulevard Périphérique) at around 21,000 people per km². However, there are areas that reach over 50,000 people per km², which is dense enough to rival any big megalopolis. So, from my perspective, I would not classify Paris as medium density.

It's a high-density city.

The primary reason why this feature is so often overlooked is likely because the buildings aren't very tall. People see mid-rise buildings of 6–8 storeys and automatically assume that these must translate into some form of a medium-density city. But this is the height–density fallacy. The two do not necessarily correlate. Paris is an example of a high-density city with mid-rise buildings. But I also can think of many low-density cities with high-rise buildings.

Another reason I suspect Paris's high urban density is often missed is that it's also a highly livable and loved city. It doesn't feel that dense (even if living spaces are compact and expensive). The term density can also carry negative connotations for some. Paris, high density? It can't be. But that just helps to prove the point that density is good. You can't have urban vibrancy without it.

All of this gets at one part of the answer to our original question. Paris is not more widely replicated because building height is only one aspect of the Parisian model. Paris is not mid-rise buildings transitioning down to single-family houses. Paris is not mid-rise buildings in only designated areas. Paris is mid-rise buildings everywhere — and at very high densities.

Not every city is prepared to do that. But if you truly want to emulate Paris, then that's what it will take.