The estate's name, Nemours, is derived from the ancestral home of the DuPont family in France.
The mansion was constructed with a steel frame and concrete, making it one of the first fireproof residences of its size in America.
A massive 200-foot-long reflecting pool features 157 water jets that operate simultaneously.
The estate's grounds were designed by landscape architect Thomas W. Hastings.
The conservatory contains an impressive collection of rare and exotic plants, many maintained in original 1910-era glass structures.
Alfred I. duPont is entombed in a mausoleum on the grounds designed by Carrère and Hastings.
The mansion contains a bowling alley in the basement, an early example of a private residential recreation space.
The property includes a hidden tunnel system once used by staff for discreet movement through the house.
Nemours Estate is a 200-acre site featuring a 77-room mansion modeled after the Petit Trianon at Versailles. Alfred I. duPont commissioned the estate in 1909 as a gift for his second wife, Alicia. The property showcases an extensive collection of Louis XIV, XV, and XVI period antiques and art. The grounds contain the largest formal French garden in North America. A long reflecting pool serves as the central axis of the landscape design. The estate includes a Chauffeur's Garage housing a collection of vintage automobiles dating back to the early 20th century. Visitors can tour the mansion, the conservatory, and the surrounding gardens. The estate operates as a nonprofit organization dedicated to preserving the history and architecture of the DuPont family. The mansion is situated on a plateau overlooking the Brandywine Valley.
The view looking toward the mansion from the end of the long reflecting pool.
Wear comfortable, supportive walking shoes to navigate the extensive gravel paths and uneven terrain.
Bring a hat and sunscreen, as the formal garden areas offer very little natural shade.
Check the official website for shuttle availability, as the walk from the visitor center to the mansion is significant.
Do not attempt to walk the entire perimeter of the 200-acre estate on foot without planning for time and hydration.
Closed on Mondays; closed seasonally during the winter months.
No photography inside the mansion; stay on marked paths in the gardens to protect landscaping.
