The Langdon Gatehouse is located in Hyde Park, New York. This Renaissance Revival style house was built in 1876 as the gatehouse for the Langdon Estate. The Langdon Estate was the home of Walter Langdon and Dorothea Astor Langdon. The gatehouse was given as a wedding gift to Emily Astor Kane and her newlywed husband Augustus Jay, great grandson of John Jay. In 1895 after Walter Langdon, Jr. died, the entire estate was sold to Frederick W. Vanderbilt.  Vanderbilt moved the Langdon Gatehouse 50 yards to the south and built a new stone gatehouse.

The owner of the Langdon Gatehouse received a bronze plaque from the city of Hyde Park acknowledging his contributions to the beautification of the community.