<page_title> List of largest houses in the United States </page_title> <section_title> Largest houses </section_title> <table> <cell> 2 <col_header> Rank </col_header> </cell> <cell> 109,000 <col_header> Square footage </col_header> </cell> <cell> Oheka Castle <col_header> Name </col_header> </cell> <cell> Otto Hermann Kahn <col_header> Built for </col_header> </cell> <cell> 1919 <col_header> Year completed </col_header> </cell> </table>
Oheka Castle was built by Kahn in 1919 and is the second largest home in the United States at over 109,000 square feet.