Housing Affordability Plunges on Soaring Material Costs, Rising Home Prices

Economics
Published

Soaring building material costs, high demand and low inventory have added tens of thousands of dollars to the price of a new home and caused housing affordability to fall to its lowest level in nearly a decade during the second quarter of 2021.

According to the NAHB/Wells Fargo Housing Opportunity Index (HOI) released today, 56.6% of new and existing homes sold between the beginning of April and end of June were affordable to families earning the U.S. median income of $79,900. This is down sharply from the 63.1% of homes sold in the first quarter of 2021 and the lowest affordability level since the beginning of the revised series in the first quarter of 2012.

“Runaway construction cost growth, such as ongoing elevated prices for oriented strand board that has skyrocketed by nearly 500% since January 2020, continue to put upward pressure on home prices,” said NAHB Chairman Chuck Fowke. “Policymakers must address supply chain bottlenecks for building materials that are raising costs and harming housing affordability.”

“Recent NAHB analysis shows that higher costs for lumber products have added nearly $30,000 to the price of an average new single-family home and raised the rental price of a new apartment unit by more than $90,” said NAHB Chief Economist Robert Dietz. “With the U.S. housing market more than 1 million homes short of what is needed to meet the nation’s demand, policymakers need to focus on supply-side solutions that will enable builders to increase housing production and rein in rising home prices.”

The HOI shows that the national median home price surged to a record $350,000 in the second quarter, up $30,000 from the first quarter. This is the largest quarterly price hike in the history of this series. Meanwhile, average mortgage rates increased by 13 basis points in the second quarter to 3.09% from the rate of 2.96% in the first quarter. However, mortgage rates are currently running at 2.8%, which has provided some support for housing demand in recent weeks.

The Most and Least Affordable Markets

Pittsburgh, Pa. was the nation’s most affordable major housing market, defined as a metro with a population of at least 500,000. In Pittsburgh, 90.6% of all new and existing homes sold in the second quarter were affordable to families earning the area’s median income of $84,800.

Rounding out the top five affordable major housing markets in respective order were Lansing-East Lansing, Mich.; Youngstown-Warren-Boardman, Ohio-Pa.; Scranton-Wilkes-Barre-Hazleton, Pa.; and Harrisburg-Carlisle, Pa.

Meanwhile, Cumberland-Md.-W.Va., was rated the nation’s most affordable smaller market, with 94.0% of homes sold in the second quarter being affordable to families earning the median income of $60,800. Smaller markets joining Cumberland at the top of the list included Davenport-Moline-Rock Island, Iowa-Ill.; Sierra Vista-Douglas, Ariz.; California-Lexington Park, Md.; and Fairbanks, Alaska.

For the third straight quarter, Los Angeles-Long Beach-Glendale, Calif., remained the nation’s least affordable major housing market. There, just 8.4% of the homes sold during the second quarter were affordable to families earning the area’s median income of $78,700. In fact, the top five least affordable major markets were all located in California. In descending order, San Francisco-Redwood City-South San Francisco; Anaheim-Santa Ana-Irvine; San Diego-Carlsbad; and Oxnard-Thousand Oaks-Ventura rounded out the top five.

Four of the five least affordable small housing markets were also in the Golden State. However, at the very bottom of the affordability chart was Corvallis, Ore., where 7.2% of all new and existing homes sold in the second quarter were affordable to families earning the area’s median income of $93,000.

In descending order, other small markets at the lowest end of the affordability scale included Salinas, Calif; Napa, Calif.; Santa Cruz-Watsonville, Calif.; and San Luis Obispo-Paso Robles-Arroyo Grande, Calif.

Please visit nahb.org/hoi for tables, historic data and details.

Subscribe to NAHBNow

Log in or create account to subscribe to notifications of new posts.

Log in to subscribe

Latest from NAHBNow

Safety

Nov 28, 2025

Keep Workers Safe and Warm on Winter Jobsites

With Fall set in across the country and winter rapidly approaching, it is important to know the dangers of cold stress and the best ways to stay safe and warm on your jobsites.

Economics

Nov 26, 2025

The No. 1 Factor Driving Home Values

Square footage, curb appeal and bedroom count only tell part of the story when it comes to the value of a single-family home. Arguably, the biggest factor is where the home is located.

View all

Latest Economic News

Economics

Nov 26, 2025

Property Taxes by State – 2024

Nationally, across the 87 million owner-occupied homes in the U.S., the average amount of annual real estate taxes paid in 2024 was $4,271, according to NAHB analysis of the 2024 American Community Survey.

Economics

Nov 25, 2025

Share of New Homes with Decks Edges Lower

The share of new homes with decks edged down from 17.6% in 2023 to a new all-time low of 17.4% in 2024, according to NAHB tabulation of data from the HUD/Census Bureau Survey of Construction (SOC).

Economics

Nov 25, 2025

Building Material Prices Continued to Rise in September

Aggregate residential building material prices rose at their fastest pace since January 2023 in the latest Producer Price Index release from the Bureau of Labor Statistics. Input energy prices increased for the first time in over a year, while service price growth remained lower than goods.