California state senator Scott Wiener, who represents San Francisco, has introduced Senate Bill 827, which would effectively void all local zoning rules in “transit-rich” areas, meaning areas within a half mile of a rail station or a quarter mile of a stop on a frequent bus route. Wiener’s goal is to allow the construction of high-density housing in those transit-rich areas, thus simultaneously providing more affordable housing and encouraging more people to ride transit.
This bill would severely disrupt neighborhoods throughout San Francisco, Oakland, Berkeley, and many other cities that currently have frequent transit service, as maps reveal that it would virtually eliminate zoning in most of the land area of those cities. While some people consider zoning to be an unfair (and possibly unconstitutional) restriction of property rights, most people who live in zoned urban neighborhoods appreciate the benefits of such zoning. By limiting the maximum density of housing, zoning minimizes traffic congestion, noise, and other problems.
Moreover, neighborhoods are built with streets, water, sewer, and other infrastructure to serve the needs of the density at which the neighborhoods were built. Major increases in density would require expensive improvements to water and sewer infrastructure–far more expensive than building new infrastructure on greenfields–and streets probably could not be redesigned to accommodate the density increases in any case. Continue reading