A friend recently posted a link to a blog post that had me shaking my head. It was written by an advocate for "smart growth" policies in urban areas along the west coast. Some of the policies advocated in the post were: height restrictions on buildings, mandatory provision of affordable housing in any new development, and funding for public transit. It seems to me that it would be difficult to imagine three policies that are more at odds with one another.
Start with public transit. In order for buses, metro lines, or commuter rail to be desirable, there must be a high enough population density. Automobiles offer greater independence, and a look around the world shows that urban residents favor this independence unless the cost of driving is sufficiently high. Such costs could come in the form of congestion, expensive parking, or shortage of parking spaces. When significant population density drives these costs up public transit becomes more attractive to residents. Shorter buildings mean lower population density. Lower population density makes public transit less desirable. It seems fairly clear, then, that limiting the height of buildings would encourage the use of automobiles and make public transit less attractive. (And I'm not even touching on the fact that even cities with very high population density often need to subsidize public transit.)
Inherent in the call for legislation that requires developers to supply "affordable" housing is the claim that housing is unaffordable. In order for prices to drop there must be an increase in supply or a decrease in demand. A limit on the height of buildings is an excellent way to limit supply. In order to increase supply, and therefore lead to lower prices, restrictions on new development should be eliminated. Capping the height of new buildings is directly contradictory to the goal of creating cheaper housing because it limits supply and does nothing to demand, therefore making the problem worse, not better.
My intent is merely to show that smart growth policies can be self-defeating, so I have not provided any data. In his books Applied Economics and Economic Facts and Fallacies Thomas Sowell goes into much greater detail with supporting evidence.
Start with public transit. In order for buses, metro lines, or commuter rail to be desirable, there must be a high enough population density. Automobiles offer greater independence, and a look around the world shows that urban residents favor this independence unless the cost of driving is sufficiently high. Such costs could come in the form of congestion, expensive parking, or shortage of parking spaces. When significant population density drives these costs up public transit becomes more attractive to residents. Shorter buildings mean lower population density. Lower population density makes public transit less desirable. It seems fairly clear, then, that limiting the height of buildings would encourage the use of automobiles and make public transit less attractive. (And I'm not even touching on the fact that even cities with very high population density often need to subsidize public transit.)
Inherent in the call for legislation that requires developers to supply "affordable" housing is the claim that housing is unaffordable. In order for prices to drop there must be an increase in supply or a decrease in demand. A limit on the height of buildings is an excellent way to limit supply. In order to increase supply, and therefore lead to lower prices, restrictions on new development should be eliminated. Capping the height of new buildings is directly contradictory to the goal of creating cheaper housing because it limits supply and does nothing to demand, therefore making the problem worse, not better.
My intent is merely to show that smart growth policies can be self-defeating, so I have not provided any data. In his books Applied Economics and Economic Facts and Fallacies Thomas Sowell goes into much greater detail with supporting evidence.