The long-term trend of building single-family detached homes on smaller lots appears to have stabilized. According to an analysis from the National Association of Home Builders, new single-family detached homes have steadily shifted toward smaller lots as a direct result of builders’ efforts to improve affordability and attract homebuyers.
According to the latest Survey of Construction, the share of new homes built on smaller lots remained near record highs in 2025, following more than a decade of steadily shrinking lot sizes.
The share of small lots remained high in 2025, with close to two-thirds of new single-family detached homes sold occupying lots under 9,000 square feet. Moreover, 38% of lots were under 7,000 square feet. These shares are just slightly below the record highs established over the last two years.
