Will Density Make Housing Affordable?

California left-wingers who want to densify cities to make them affordable are getting some push-back from other left-wingers who think density will push low-income people out of neighborhoods. A proposed bill to eliminate zoning in transit-rich areas in order to allow developers to build high-density housing would, say opponents, displace low-income families from neighborhoods with high rental rates in favor of high-income whites who can afford to pay for high-rise housing.

The opponents aren’t wrong. On one hand, increasing housing supply would seem to make housing more affordable. But affordable for whom? With housing prices in some California cities averaging more than $1,000 per square foot, building high-density housing that costs $400 to $500 a square foot would allow people who can afford that to find a place to live. But hardly anyone can afford that.

The problem is that high-density housing–that is, mid-rise and high-rise housing–costs 50 to 68 percent more, per square foot, to build than low-density housing. If California really wants to build housing that is affordable to low-income people, it needs to build more low-density housing. To build that, it needs to open up land that has been off-limits to development because it is outside of urban-growth boundaries. Continue reading