If it seems like the houses in your neighborhood are getting bigger by the year, you’re not imagining things. Over the past half-century, the size of the average American home has grown by more than 1,000 square feet—with a price tag to match. In 2018, the average new construction single-family home spanned more than 2,600 square feet and sold for nearly $378,000. However, in the 1960s, a new single-family home was a modest Continued…