New Single-Family Home Size: First Quarter 2019 Data

New single-family home size increased slightly at the start of 2019, as the market slowed.

According to first quarter 2019 data from the Census Quarterly Starts and Completions by Purpose and Design and NAHB analysis, median single-family square floor area ticked up to 2,355 square feet. Average (mean) square footage for new single-family homes increased to 2,584 square feet.

On a less volatile one-year moving average, the recent trend of declines in new home size can be seen on the graph above, although current readings remain elevated. Since cycle lows (and on a one-year moving average basis), the average size of new single-family homes is 8% higher at 2,551 square feet, while the median size is 11% higher at 2,335 square feet.

The post-recession increase in single-family home size was consistent with the historical pattern coming out of recessions. Typical new home size falls prior to and during a recession as home buyers tighten budgets, and then sizes rise as high-end homebuyers, who face fewer credit constraints, return to the housing market in relatively greater proportions. This pattern was exacerbated during the current business cycle due to market weakness among first-time homebuyers and supply-side constraints in the building market. But current declines in size indicate that this part of the cycle has ended, and size will trend lower as builders add more entry-level homes into inventory and the custom market levels off.

In contrast to single-family patterns, new multifamily apartment size is down compared to the pre-recession period. This is due to the weak for-sale multifamily market and strength for rental demand.



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