Extravagant Homes: Exploring America’s Largest Residences

The United States is home to some of the largest and most extravagant residences in the world. Among these, the Biltmore Estate stands out as the largest private home, boasting an impressive 175,000 square feet of living space. Built in 1895 by George Washington Vanderbilt II, this architectural marvel features 250 rooms, including 35 bedrooms, 43 bathrooms, and 65 fireplaces. Located just outside Asheville, North Carolina, the estate has become a major tourist attraction, showcasing the opulence of America’s Gilded Age.

Recent trends indicate a shift in home sizes across the country. As of mid-2025, the average size of newly constructed single-family homes has stabilized at approximately 2,364 square feet, with a median of 2,125 square feet, according to data from the U.S. Census Bureau and the National Association of Home Builders. This is a decline from the mid-2010s peak of around 2,500 square feet, driven by rising construction costs, high mortgage rates, and a growing preference for energy-efficient living spaces.

Despite this trend, a number of excessively large homes remain in the United States, highlighting the wealth disparity among Americans. Many of these residences were constructed by some of the country’s wealthiest individuals, often functioning as museums or venues for public events.

Noteworthy Large Homes Across America

Following the Biltmore Estate, the second-largest home is Fair Field, located in New York and built by junk bond billionaire Ira Rennert. Completed in 2003, it encompasses 110,000 square feet and features 29 bedrooms and 39 bathrooms. This opulent estate is estimated to be worth between $267 million and $500 million.

Another architectural gem is Oheka Castle, measuring 109,000 square feet. Constructed in 1919, it has transitioned from a private residence to a hotel and event venue. The castle is renowned for its grandeur and historical significance, as it was once home to financier Otto Khan.

Not far behind in size is The One, a recent addition to the list of extravagant homes. Located in Bel Air, California, this residence measures 105,000 square feet and includes features such as a four-lane bowling alley and five swimming pools. Built for Richard Saghian, founder of Fashion Nova, it was completed in 2021 and sold for $126 million.

The Legacy of American Wealth in Housing

Many of the expansive homes in America are steeped in history, once owned by prominent families such as the Vanderbilts. For instance, Florham, another grand property built in 1899, was designed by Florence Adele Vanderbilt and originally cost approximately $5 million, equivalent to roughly $146 million today. The estate is now part of Fairleigh Dickinson University.

The Idle Hour, previously owned by the Vanderbilt family, measures 70,000 square feet and features 110 rooms. Completed in 1882, it has undergone various ownership changes and was sold for $26.1 million in 2017.

As housing trends evolve, the existence of these monumental homes serves as a reminder of the stark contrasts in living standards within the country. While many Americans opt for smaller, more affordable homes, the lavish lifestyles of the wealthiest individuals continue to shape the landscape of American real estate. The influence of these homes often extends beyond private living spaces, with many serving as cultural landmarks and historical sites that attract visitors from around the world.

Ultimately, the largest homes in America not only reflect personal wealth but also highlight the enduring legacy of architectural ambition and historical significance associated with the nation’s elite.