Brandon Donnelly — Daily insights for city builders. Published since 2013 by Toronto-based real estate developer Brandon Donnelly. — Page 240

Let's continue with our theme of city blocks and talk about another city with a noteworthy street grid: Barcelona. Up until the middle of the 19th century, Barcelona was a tiny medieval city hemmed in by 6 km of walls and totalling just over 2 square kilometers. If you look at a map of the city today, it's pretty easy to see where this was:

This was of course done for military purposes. Barcelona's medieval walls helped the city resist siege after siege. But the result was also overcrowding, unsanitary conditions, and a generally low life expectancy. So after much debate, it was eventually decided that the walls would need to come down and that the city would need to expand outward.

This then raised the question: how should it be done?

Enter a civil engineer named Ildefons Cerdà. Created in 1860, the Cerdá Plan for Barcelona was a continuous grid of blocks intended to guide the future growth of the city, similar to what the Commissioners' Plan did for Manhattan . The blocks measured exactly 113.3 by 113.3 meters and each was to have a central open space of at least 800 square meters.

In his original plan, the streets were to be 35 meters wide. But supposedly these were narrowed to no more than 20 to 30 meters due to criticism from the public. Wide streets and more lanes were, I guess, not seen as a benefit in the second half of the 19th century. Either this, or landowners simply wanted bigger buildings.

The Cerdá Plan got approved in 1860 and, today, the city looks like this:

One particularly unique feature of this plan was that the blocks all had/have chamfered corners. This improved visibility at the intersections, as well as created opportunities for public spaces and other uses. For better or for worse, today, you'll find parking for cars and scooters, bike share stations, ramps leading to underground garages, patios, and more.

The heights of the buildings on each block were also intended to be capped at a consistent height. But even with relatively few tall buildings, the Cerdà Plan led to one of the densest cities in Europe. Today, it is also viewed as a highly livable and desirable city. Hence why the city announced a total ban on short-term rentals. Too popular.

Now for a comparison. Last week we spoke about Salt Lake City's large city blocks ( here and here ). And so for fun, here's what these blocks would look like on top of Barcelona:

The most obvious takeaway is that Salt Lake City has larger city blocks than Barcelona, and that's one reason why, objectively, Barcelona is more walkable and urban than SLC. But I think you could also view this graphic as a tremendous opportunity.

Barcelona is in the midst of rethinking its urban fabric around something called " superblocks ." The idea here is to cluster blocks together and then concentrate transit and vehicular traffic along its edges, creating a more pedestrian-focused center. For example, in its largest form, a superblock might be a 3 x 3 grid, creating a grouping of 9 city blocks.

But it doesn't necessarily need to be a 3 x 3 grid. Other permutations are possible and the city plans to eventually introduce over 500 of them.

The first superblock was implemented in 2017 and, not surprisingly, it improved air quality, increased quietness, and led to a significant decrease in car usage (-92%). Interestingly enough, it only led to a moderate increase in car traffic on surrounding streets (+3%). Traffic can be a funny thing.

Creating superblocks out of smaller blocks is naturally easier than the opposite. You have an existing grid to work with. But there's no reason that the opposite can't also be done. And I think that's one way to look at Salt Lake City's street grid. It already has its superblocks. Now it's just a question of creating all of its smaller blocks.

My friend Austin Kjorven convinced me that we should ride 70 km today so that I can try the beer and burgers at Badlands Brewing Company . Here's the route we took:

I can now confirm that their smash burgers are as advertised. Great buns. I even had two of them just to make sure the first one wasn't some sort of fluke.

My knees are, however, still giving me problems . I even tried KT tape and the brightest compression socks available in Austin's closet.

Still, it was an awesome ride. If you happen to find yourself near Caledon, Ontario, definitely check out the Badlands Brewing Company.

Our growing desire -- and ability -- to live, work, and/or play in other places is, in my opinion, a powerful macro trend. We spoke about that here , here , and here . And one of the things that has obviously empowered this trend is the growth of short-term rentals.

But right now, the winds are not in favor of this model.

In September 2023, nearly a year ago, New York City enacted one of the strictest short-term rental laws to date, requiring hosts to be physically present while a dwelling is being rented. Yeah, that eliminates the majority of use cases.

Then in June of this year, Barcelona mayor Jaume Collboni announced a complete ban of short-term rentals starting November 2028. This is expected to return some 10,000 apartments to the long-term housing market.

Regardless of whether it will be effective, it is obvious why this is being done: housing unaffordability and too many annoying tourists. (We are flying to Barcelona next week and will endeavor to not be annoying.)

But at the end of the day, this is not going to extinguish our underlying desire to live, work, and play around the world. So I think these restrictions will create new opportunities to service this demand. It also strengthens the bull case for the tried-and-true formula of purpose-built hotels.