A new LendingTree analysis found that the average size of new single-family homes declined close to 12% over the past decade, from 2,724 square feet in 2015 to 2,409 square feet in 2025, while the average price per square foot surged 72% over the same period. Builders are trimming square footage to keep total prices accessible as land, labor and material costs surge. The Northeast saw the largest jump in price per square foot at 97%.
