For consumption by the security dealers and home automation dealer whose business relies on new construction, the Joint Center for Housing Studies of Harvard University conducts an annual report on The State of the Nation’s Housing. This report offers useful insight into not only homeownership and renter rates, but trends among cost-burdened households who pay a disproportionate share of income for housing, potentially leaving less income for purchasing things such as technology.

The State of the Nation’s Housing2015 report, released in June, concluded that the fledgling U.S. housing recovery lost momentum last year as homeownership rates continued to fall, single-family construction remained near historic lows, and existing home sales cooled. In contrast, rental markets continued to grow, fueled by another large increase in the number of renter households. However, with rents rising and incomes well below pre-recession levels, the U.S. is also seeing record numbers of cost-burdened renters, including more renter households higher up the income scale.

“Perhaps the most telling indicator of the state of the nation’s housing is the drop in the homeownership rate to just 64.5 percent last year,” says Chris Herbert, managing director of the Joint Center for Housing Studies. “This erases nearly all of the increase from the previous two decades. In fact, the number of homeowners fell for the eighth straight year, and the trend does not appear to be abating.”

The flip side of falling homeownership rates has been exceptionally strong demand for rental housing, with the 2010s on pace to be the strongest decade for renter growth in history. While soaring demand is often attributed to the Millennials’ preference to rent, households aged 45 to 64, in fact, accounted for about twice the share of renter growth as households under the age of 35. Similarly, households in the top half of the income distribution, although generally more likely to own, contributed 43 percent of the growth in renters.

The other byproduct of this surge in rental demand is that the national vacancy rate fell to its lowest point in nearly 20 years. Given the limited supply of rental units, rents rose at a 3.2 percent rate last year — twice the pace of overall inflation.

“To meet this demand, construction started on more multi-family units in 2014 than in any year since 1989,” said Daniel McCue, a senior research associate at the Joint Center. “And if job growth continues to pick up, we could see even more demand, as young adults increasingly move out of their parents’ homes and into their own apartments.”

Even before the Great Recession, the number of cost-burdened households (those paying more than 30 percent of income for housing) was on the rise. But while the cost-burdened share of homeowners began to recede in 2010 (because some homes were lost to foreclosure, and low interest rates helped other homeowners reduce their monthly costs), the cost-burdened share of renters has held near record highs. In 2013, almost half of all renters had housing cost burdens, including more than a quarter with severe burdens (paying more than 50 percent of income for housing).

But perhaps most troubling, according to the Joint Center for Housing Studies of Harvard University, cost burdens are climbing the income ladder, affecting growing shares of not just low-income renters but moderate- and middle-income renters as well. The cost-burdened share of renters with incomes in the $30,000 to $45,000 range rose to 45 percent between 2003 and 2013, while one in five renters earning $45,000 to $75,000 is now cost-burdened as well.

“While affordability for moderate income renters is hitting some cities and regions harder than others, an acute shortage of affordable housing for lowest-income renters is being felt everywhere,” Herbert concluded. “Between the record level of rent burdens and the plunging homeownership rate, there is a pressing need to prioritize the nation’s housing challenges in policy debates over the coming year if the country is to make progress toward the national goal of secure, decent, and affordable housing for all.”

The State of the Nation’s Housing, released annually by the Joint Center for Housing Studies, provides a periodic assessment of the nation’s housing outlook and summarizes important trends in the economics and demographics of housing. Support is provided, in part, by the National Association of Home Builders, among many other organizations.

For information, visit www.jchs.harvard.edu.