On July 1 of this year, a new California bill, called the "Affordable Housing and High Road Jobs Act of 2022", will go into effect. And the goal of this legislation is to significantly increase the supply of new homes in the state by allowing multi-family construction on lands that are currently zoned for commercial uses.
On some level, it is of course curious that there even needs to be this bill. Because what we are effectively saying is, "hey, we should allow people to build a mix of uses on our main streets and with high enough densities that we might actually be able to support transit." Why was this not always the case? (Rhetorical question.)
In the words of architect and planner Peter Calthorpe, who was recently interviewed here in ArchDaily, this is a "landmark piece of legislation" that has "received very little attention." So that's why we're talking about it today.
Calthorpe was actively involved in crafting this legislation, and his work apparently started with different scenario land-use models. The first experiment looked at a 43-mile stretch of El Camino running from San Francisco to San Jose (pictured below). And what they found was that this one strip alone could accommodate somewhere around 250,000 new infill homes.

To put this into context, the state of California is currently building about 140,000 new homes each year, through a roughly equal (1:1) split of multi-family and low-rise single-family. Already this represents a shift, as supply used to be slanted (3:1) toward low-rise. (I don't know when exactly this was the case, but Calthorpe mentions the figure in his interview.)
Moving on from El Camino, Calthorpe and his team then ran a similar exercise for the five-county inner Bay area. And here they found that some 700 miles of commercial land could produce up to 1.3 million multi-family homes at "reasonable densities." This was then expanded to the entire state of California and the number increased to 10 million new homes.
Of course, as we have talked about before on this blog, not all of this land might actually be feasible for development. Sometimes the math doesn't work even at a zero land cost; you might need a negative land cost in order to pencil a new development. Meaning, you might need to be paid, perhaps through some sort of subsidy.
So what Calthorpe and the team did was use MapCraft to quickly run development feasibilities on the above sites. They had it run 6 different pro formas using local rents, construction costs, city fees, and so on. And what they determined was that this 10 million number drops down to 2 million when you apply the economic realities of the world.
As a disclaimer, I'm not at all familiar with MapCraft. But I'm going to take this number at face value and say that this is still a lot of new homes. And this is what people are hoping for come July 1 of this year.
Image: HDR / Peter Calthorpe
Here is an excellent reason for why you may want to spend more time walking:
People have noted that walking seems to have a special relation to creativity. The philosopher Friedrich Nietzsche (1889) wrote, “All truly great thoughts are conceived by walking” (Aphorism 34). The current research puts such observations on solid footing. Four studies demonstrate that walking increases creative ideation. The effect is not simply due to the increased perceptual stimulation of moving through an environment, but rather it is due to walking. Whether one is outdoors or on a treadmill, walking improves the generation of novel yet appropriate ideas, and the effect even extends to when people sit down to do their creative work shortly after.
The results were a bit inconclusive as to whether outdoor walking is better than other forms of walking, so for now we will just say that walking -- in general -- is good for creative thinking. But where my mind immediately goes is: Does this finding scale up?
In other words, if you were to take two different cities -- City A where everybody, for the most part drives, and City B where everybody, for the most part, walks -- could you find any evidence that City B was on average more creative than City A?
I guess one way you could measure this is through patents. And if you were to look at patents per capita in the US, you'd likely find cities like Princeton (NJ), Redmond (WA), and cities in Silicon Valley near the top of the list. I'm not sure there's an obvious correlation here.
But it is kind of interesting to think about a possible relationship between urban form and creativity.
Venture firm a16z just announced that it will be "moving its headquarters to the cloud." At the same time, it announced 3 new offices in Miami Beach, New York, and Santa Monica. These will be in addition to their existing offices in Menlo Park and San Francisco.
Part of their argument is that hybrid work is weakening the network effects and agglomeration economies associated with being right in Silicon Valley. So they've deiced to be virtual, but still have offices where they can "materialize physically" when needed.
They acknowledge that physical presence is important for developing a company's culture, building relationships, and helping entrepreneurs (their core business).
What's interesting about all of this is that it's further validation for Miami (Beach). Here is one of the most important venture firms out there saying that when they quickly materialize in real life, they want to be able to do that in Miami Beach.
It also raises some interesting questions. Because even if the network effects of Silicon Valley are weakening when it comes to tech, this announcement still speaks to the importance of agglomeration economies. These three new office locations were chosen for a reason.
On July 1 of this year, a new California bill, called the "Affordable Housing and High Road Jobs Act of 2022", will go into effect. And the goal of this legislation is to significantly increase the supply of new homes in the state by allowing multi-family construction on lands that are currently zoned for commercial uses.
On some level, it is of course curious that there even needs to be this bill. Because what we are effectively saying is, "hey, we should allow people to build a mix of uses on our main streets and with high enough densities that we might actually be able to support transit." Why was this not always the case? (Rhetorical question.)
In the words of architect and planner Peter Calthorpe, who was recently interviewed here in ArchDaily, this is a "landmark piece of legislation" that has "received very little attention." So that's why we're talking about it today.
Calthorpe was actively involved in crafting this legislation, and his work apparently started with different scenario land-use models. The first experiment looked at a 43-mile stretch of El Camino running from San Francisco to San Jose (pictured below). And what they found was that this one strip alone could accommodate somewhere around 250,000 new infill homes.

To put this into context, the state of California is currently building about 140,000 new homes each year, through a roughly equal (1:1) split of multi-family and low-rise single-family. Already this represents a shift, as supply used to be slanted (3:1) toward low-rise. (I don't know when exactly this was the case, but Calthorpe mentions the figure in his interview.)
Moving on from El Camino, Calthorpe and his team then ran a similar exercise for the five-county inner Bay area. And here they found that some 700 miles of commercial land could produce up to 1.3 million multi-family homes at "reasonable densities." This was then expanded to the entire state of California and the number increased to 10 million new homes.
Of course, as we have talked about before on this blog, not all of this land might actually be feasible for development. Sometimes the math doesn't work even at a zero land cost; you might need a negative land cost in order to pencil a new development. Meaning, you might need to be paid, perhaps through some sort of subsidy.
So what Calthorpe and the team did was use MapCraft to quickly run development feasibilities on the above sites. They had it run 6 different pro formas using local rents, construction costs, city fees, and so on. And what they determined was that this 10 million number drops down to 2 million when you apply the economic realities of the world.
As a disclaimer, I'm not at all familiar with MapCraft. But I'm going to take this number at face value and say that this is still a lot of new homes. And this is what people are hoping for come July 1 of this year.
Image: HDR / Peter Calthorpe
Here is an excellent reason for why you may want to spend more time walking:
People have noted that walking seems to have a special relation to creativity. The philosopher Friedrich Nietzsche (1889) wrote, “All truly great thoughts are conceived by walking” (Aphorism 34). The current research puts such observations on solid footing. Four studies demonstrate that walking increases creative ideation. The effect is not simply due to the increased perceptual stimulation of moving through an environment, but rather it is due to walking. Whether one is outdoors or on a treadmill, walking improves the generation of novel yet appropriate ideas, and the effect even extends to when people sit down to do their creative work shortly after.
The results were a bit inconclusive as to whether outdoor walking is better than other forms of walking, so for now we will just say that walking -- in general -- is good for creative thinking. But where my mind immediately goes is: Does this finding scale up?
In other words, if you were to take two different cities -- City A where everybody, for the most part drives, and City B where everybody, for the most part, walks -- could you find any evidence that City B was on average more creative than City A?
I guess one way you could measure this is through patents. And if you were to look at patents per capita in the US, you'd likely find cities like Princeton (NJ), Redmond (WA), and cities in Silicon Valley near the top of the list. I'm not sure there's an obvious correlation here.
But it is kind of interesting to think about a possible relationship between urban form and creativity.
Venture firm a16z just announced that it will be "moving its headquarters to the cloud." At the same time, it announced 3 new offices in Miami Beach, New York, and Santa Monica. These will be in addition to their existing offices in Menlo Park and San Francisco.
Part of their argument is that hybrid work is weakening the network effects and agglomeration economies associated with being right in Silicon Valley. So they've deiced to be virtual, but still have offices where they can "materialize physically" when needed.
They acknowledge that physical presence is important for developing a company's culture, building relationships, and helping entrepreneurs (their core business).
What's interesting about all of this is that it's further validation for Miami (Beach). Here is one of the most important venture firms out there saying that when they quickly materialize in real life, they want to be able to do that in Miami Beach.
It also raises some interesting questions. Because even if the network effects of Silicon Valley are weakening when it comes to tech, this announcement still speaks to the importance of agglomeration economies. These three new office locations were chosen for a reason.
Share Dialog
Share Dialog
Share Dialog
Share Dialog
Share Dialog
Share Dialog