Robert Parker & Rebecca Lewis:

For decades land use regulation across the U.S. has emphasized single-family houses on large lots. This approach has priced many people out of the quintessential American dream: homeownership. It also has promoted suburban sprawl – a pattern of low-density, car-dependent development that has dominated growth at the edges of urban areas since the end of World War II.

Now, however, Americans may be starting to question the desirability of a private house. In the past year, the Minneapolis City Council and the state of Oregon have voted to allow duplexes and other types of multi-unit housing in neighborhoods where currently only single-family homes currently are allowed. Democratic lawmakers in Virginia, who recently won control of their state’s legislature, are seeking to enact similar legislation. And several Democratic presidential candidates have included changes to zoning laws in their housing policies.