Opinion: America’s love affair with the single-family house is slowly cooling
7073彩票注册Zoning restrictions are being lifted to address affordability, racism and environmental destruction
Now, however, Americans may be the desirability of a private house.
7073彩票注册In the past year, the Minneapolis City Council and the state of Oregon have voted to in neighborhoods where currently only single-family homes currently are allowed.
7073彩票注册 , who recently won control of their state’s legislature, are seeking to enact similar legislation. And have included changes to zoning laws in their housing policies.
Headlines have predicted a housing revolution. But based on our research, we believe that while attitudes about suburban life may be evolving, the transition away from single-family zoning will be slow and difficult.
Sprawl’s heavy costs
Elected officials are because some of their constituents worry that single-family houses cost too much, are wasteful, and can isolate people from their communities.
7073彩票注册Many researchers have shown that single-family zoning .
Our research focuses on its environmental impacts. have shown that sprawl is energy-intensive, mainly for transportation; consumes too much land; degrades air and water quality; reduces species diversity; and
We have examined how Oregon’s land-use policy affects and Oregon’s Oregonians are known to be progressive and environmentally conscious. They hate density because they value privacy and space. But they also because it consumes valuable agricultural land.
In short, Oregon would seem to be the ideal starting point for policies curbing single-family zoning. One of its 19 statewide land-use planning goals, which were adopted in the early 1970s, addresses housing and requires cities to include many housing types. But exclusive single-family neighborhoods still dominate Oregon’s landscape today.
7073彩票注册In the early 1970s, in what came to be named some states started taking back authority over zoning that they had ceded to cities and towns. In 1973, Oregon created “urban growth boundaries” — a line of demarcation between urban and rural land uses — around each of its cities, along with other measures to contain growth and prevent sprawl.
7073彩票注册Our research shows that this approach has helped contain urban growth and promote more efficient land use. Single-family density in urban growth boundaries, as measured by single-family housing units per acre, has consistently increased since the zones were created. Statewide, single-family density increased 22% from 1993 to 2012.
The urban growth boundary has protected land just outside city limits of Eugene, Ore., from development, but single-family residential land constitutes 87% of residential land inside the boundary.
Still, urban growth boundaries. We have found that land exclusively zoned for single-family homes can hold only a maximum of eight to 10 units per acre. And as demand for houses exceeds supply, lower-income families are pushed into cheaper areas far from their work.
, a national coalition that advocates for denser development, estimates that only 89 housing units were built in Oregon for every 100 households formed from 2000 through 2015.
In short, housing is getting more expensive. A 2019 Harvard study concluded that(under $800 per month, adjusted for inflation) in Oregon decreased by 44% between 1990 and 2017. Today is stand-alone houses or detached single-family units.
Smaller dwellings more desirable
These issues aren’t limited to Oregon. According to the Harvard Joint Center on Housing, 47% of renter households nationwide arein housing costs. And new residential construction remains below pre-2008-2009 recession era rates.
Between 2000 and 2015, of housing, meaning that families across the country are struggling to find housing that is affordable and available. This shortage spanned 22 states and the District of Columbia.
7073彩票注册Public officials are recognizing that allowing only single-family houses also creates Single-family zoning segregated neighborhoods after World War II by excluding African-American families — who could not afford to buy single-family homes — from middle-class white neighborhoods.
7073彩票注册Today demand for smaller, connected houses — including duplexes, triplexes and quadplexes — within walking distance of services is increasing.
People like living this way, but as architect and urban designer Daniel Parolek has shown, regulatory barriers deter builders from producing more of these types of housing, which he calls the As Parolek points out, many of the diverse housing types that are common in older neighborhoods, such as duplexes and triplexes, are illegal under most current zoning codes.
Modest but important start
7073彩票注册All of these factors helped drive and to move away from single-family zoning and allow more housing types. But for all of the attention that these actions have received, we predict that they will have modest impact.
7073彩票注册Housing markets are complex and are affected by much more than zoning. One key question is whether costs will decline if policy makers encourage construction of diverse “missing middle” dwelling types.
7073彩票注册But this does not mean that changing zoning policies is misguided. Promoting construction of broader ranges of housing creates more vibrant neighborhoods, reduces conversion of farm and forest land for suburban development, reduces infrastructure costs, and provides more equitable housing opportunities for all.
Robert Parker is co-director of the Institute for Policy Research and Engagement at the University of Oregon. Rebecca Lewis is an associate professor of planning, public policy and management at the University of Oregon. This was first published on —