Walkers in the City

photo by Derrick Coetzee

The Center for Real Estate and Urban Analysis at The George Washington School of Business has released Foot Traffic Ahead: Ranking Walkable Urbanism in America’s Largest Metros for 2016. The Executive Summary opens,

The end of sprawl is in sight. The nation’s largest metropolitan areas are focusing on building walkable urban development.

For perhaps the first time in 60 years, walkable urban places (WalkUPs) in all 30 of the largest metros are gaining market share over their drivable sub-urban competition—and showing substantially higher rental premiums.

This research shows that metros with the highest levels of walkable urbanism are also the most educated and wealthy (as measured by GDP per capita)— and, surprisingly, the most socially equitable. (4)

This strikes me as a somewhat over-optimistic take on sprawl, but I certainly welcome the increase in walkable urban places over a broad swath of metropolitan areas. The report’s specific findings are that

There are 619 regionally significant, walkable urban places—referred to as WalkUPs—in the 30 largest U.S. metropolitan areas. These 30 metros represent 46 percent of the national population (145 million of the 314 million national population) and 54 percent of the national GDP.

The 30 metros are ranked on the current percentage of occupied walkable urban office, retail, and multi-family rental square feet in their WalkUPs, compared to the balance of occupied square footage in the metro area. The six metros with the most walkable urban space in WalkUPs are, in rank order, New York City, Washington, DC, Boston, Chicago, San Francisco, and Seattle.

Economic Performance: There are substantial and growing rental rate premiums for walkable urban office (90 percent), retail (71 percent), and rental multi-family (66 percent) over drivable sub-urban products. Combined, these three product types have a 74 percent rental premium over drivable sub-urban.

Walkable urban market share growth in office and multi-family rental has increased in all 30 of the largest metros between 2010-2015, while drivable sub-urban locations have lost market share. The market share growth for 27 of the 30 metros is two times their market share in 2010. This is of the same or greater magnitude as the market share gains of drivable sub-urban development during its boom years in the 1980s, but in the reverse direction.

Indicators of potential future WalkUP performance show that many of the metros ranked highest for current walkable urbanism are also found at the top of our Development Momentum Ranking—namely, the metros of New York City, Boston, Seattle, and Washington, DC. This indicates that these metros will continue to build on their already high WalkUP market shares and rent premiums.

There are also some surprising metros in this top tier of Development Momentum rankings, including Detroit, Phoenix, and Los Angeles.

The most walkable urban metro areas have a substantially greater educated workforce, as measured by college graduates over 25 years of age, and substantially higher GDP per capita. These relationships are correlations, and determining the causal relationships requires further research to prove.

Walkable urban development describes trends resulting from both revitalization of the central city and urbanization of the suburbs. For nearly all metros, the future urbanization of the suburbs holds the greatest opportunity; metro Washington, DC, serves as a model, splitting its WalkUPs relatively evenly between its central city (53 percent) and its suburbs (47 percent).

Social Equity Performance: The national concern about social equity has been exacerbated by the very rent premiums highlighted above, referred to as gentrification. Counter-intuitively, measurement of moderate-income household (80 percent of AMI) spending on housing and transportation, as well as access to employment, shows that the most walkable urban metros are also the most socially equitable. The reason for this is that low cost transportation costs and better access to employment offset the higher costs of housing. This finding underscores for the need for continued, and aggressive, development of attainable housing solutions. (4, footnote omitted)

There is a lot of import here. Is there more than a correlation between walkability and the educational level of the workforce and, if so, why? Why don’t more housing affordability studies take into account transportation costs when evaluating the affordability of a given community? What is the trend line of this new direction toward urbanism and how far can it go in the face of decades of investment in car-based communities? This annual study will help us answer those questions, over time.

The Land Use Report of the President

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The Economic Report of the President contains an important analysis of local land use policies in a section titled “Constraints on Housing Supply:”

Supply constraints provide a structural challenge in the housing market, particularly in high-mobility, economically vibrant cities. When housing supply is constrained, it has less room to expand when demand increases, leading to higher prices and lower affordability. Limits on new construction can, in turn, impede growth in local labor markets and restrain aggregate output growth. Some constraints on the supply of housing come from geography, while others are man-made. Constraints due to land-use regulations, such as minimum lot size requirements, height restrictions, and ordinances prohibiting multifamily housing, fall into the man-made category and thus could be amended to support more inclusive growth. While these regulations can sometimes serve legitimate purposes such as the protection of human health and safety and the prevention of environmental degradation, land-use regulations can also be used to protect vested interests in housing markets.

Gyourko and Molloy (2015) argue that supply constraints have worsened in recent decades, in large part due to more restrictive land-use regulations. House prices have risen faster than construction costs in real terms, providing indirect evidence that land-use regulations are pushing up the price of land.

According to Gyourko and Molloy (2015), between 2010 and 2013, real house prices were 55 percent above real construction costs, compared with an average gap of 39 percent during the 1990s. Several other studies note that land-use regulations have been increasing since roughly 1970, driving much of the real house appreciation that has occurred over this time (Glaeser, Gyourko, and Saks 2005; Glaeser and Ward 2009; Been et al. 2014). This pattern is noteworthy because of the positive correlation between cities’ housing affordability and the strictness of their land use regulations, as measured by the Wharton Residential Land Use Regulation Index (Gyourko et al. 2008). Cities to the lower right of the figure which include Boston and San Francisco, have stringent land-use regulations and low affordability. Cities at the upper left, which include St. Louis and Cleveland, have low regulation and high affordability. Supply constraints by themselves do not make cities low in affordability. Rather, the less responsive housing supply that results from regulation prevents these cities, which often happen to be desirable migration destinations for workers looking for higher-paying jobs, from accommodating a rise in housing demand.

In addition to housing affordability, these regulations have a range of impacts on the economy, more broadly. Reduced housing affordability—whether as an ancillary result of regulation or by design—prevents individuals from moving to high productivity areas. Indeed, empirical evidence from Molloy, Smith, and Wozniak (2012) indicates that migration across all distances in the United States has been in decline since the middle of the 1980s. This decreased labor market mobility has important implications for intergenerational economic mobility (Chetty et al. 2014) and also was estimated in recent research to have held back current GDP by almost 10 percent (Hsieh and Moretti 2015).

Land-use regulations may also make it more difficult for the housing market to accommodate shifts in preferences due to changing demographics, such as increased demand for modifications of existing structures due to aging and increased demand for multifamily housing due to higher levels of urbanization (Goodman et al. 2015). A number of Administration initiatives, ranging from the Multifamily Risk-Sharing Mortgage program to the Affirmatively Furthering Fair Housing rule, try to facilitate the ability of housing supply to respond to housing demand. Ensuring that zoning and other constraints do not prevent housing supply from growing in high productivity areas will be an important objective of Federal as well as State and local policymakers. (87-89, figures omitted and emphasis added)

It is important in itself that the Executive Branch of the federal government has acknowledged the outsized role that local land use policies play in the economy. But the policies that the Obama Administration has implemented don’t go very far in addressing the problems caused by myopic land use policies that favor vested interests. The federal government can be far more aggressive in rewarding local land use policies that support equitable housing and economic development goals. It can also punish local land use policies that hinder those goals.

Edward Glaeser and Joseph Gyourko get much of the credit for demonstrating the effect that local land use policies have on federal housing policy. Now that the President is listening to them, we need Congress to pay attention too. This could be one of those rare policy areas where Democrats and  Republicans can find common ground.

Wednesday’s Academic Roundup

Wednesday’s Academic Roundup

Housing in Smart Cities

I attended an interesting research seminar led by Anthony Townsend yesterday at NYU’s Center for Urban Science and Progress (conveniently located in downtown Brooklyn). Professor Townsend is affiliated to NYU’s Rudin Center for Transportation Policy & Management. He discussed his recent book, Smart Cities: Big Data, Civic Hackers, and the Quest for a New Utopia. Townsend argued that the 21st century will be defined by two global trends – urbanization of the world’s population, and ubiquitous computing. He traced the origins of the “smart cities” movement, its goals and the problems it faces.

As noted on Amazon, the book argues that

cities worldwide are deploying technology to address both the timeless challenges of government and the mounting problems posed by human settlements of previously unimaginable size and complexity. In Chicago, GPS sensors on snow plows feed a real-time “plow tracker” map that everyone can access. In Zaragoza, Spain, a “citizen card” can get you on the free city-wide Wi-Fi network, unlock a bike share, check a book out of the library, and pay for your bus ride home. In New York, a guerrilla group of citizen-scientists installed sensors in local sewers to alert you when stormwater runoff overwhelms the system, dumping waste into local waterways.

While Townsend’s talk did not apply his thesis to urban housing and his book only touches on it, it is certainly worth thinking through how Big Data can help provide more housing and better housing in big cities.

Housing is as “unvirtual,” or perhaps as “real,” a good as a good can be. But businesses such as Airbnb show how the virtual and the real can combine into something quite new. Obviously Airbnb does not solve many housing problems for residents of cities, but it does demonstrate that there is a brave new world ahead. Housing policymakers should try to discern what it is going to look like and how it can be harnessed as a force of civic good.