The average size of new homes built in 2016 was 2,634 square feet compared with 2,689 square feet the previous year, per recent U.S. Census Bureau data. This shows that the home-building industry is preparing for the coming wave of first-time buyers, according to newly released research and survey results from the National Association of Home Builders (NAHB).

“The data on new home characteristics show a pattern,” says Rose Quint, the NAHB’s assistant vice president for survey research. “2016 marked the end of an era that began in 2009 when homes got bigger and bigger with more amenities. I expect the size of homes to continue to decline as demand increases from first-time buyers.”

The NAHB’s Home Builder Preferences Survey shows that buyers are seeking specific amenities, with a separate laundry room topping the list of must-haves across all income groups. Also popular are energy-efficient features—including low-e windows, Energy Star-rated appliances, ceiling fans and programmable thermostats—along with patios, exterior lighting and a full bath on the main level. Some not-so-popular features among buyers? Cork flooring and solar and geothermal energy, as well as pet-washing stations, outdoor kitchens and sunrooms.