The house was built as a summer villa on a parcel comprising an area of 130 acres.
Thus, the Morris property covered some distance from Harlem all the way to the Hudson River.
It is an early example of the Palladian style of architecture.
Morris, whose uncle was a successful architect in England, was influenced by Palladio, a 16th-century Italian architect.
His design included a double-height portico and triangular pediment – innovative features for 1765 – supported by grand Tuscan columns, and a two-story octagonal room at the rear of the mansion, which is believed to be the first of its kind in the country.

The remodeling by the Jumels c.1810 was in the Federal style current at the time, and included the entrance.

The house has been said to contain "some of the finest Georgian interiors in America."
Today, the house is lavishly decorated with period furnishings and careful reproductions of period carpets and wallpaper.
It features nine restored rooms, one of which was Washington's office.
The dining room and Eliza Jumel's bedchamber, with a bed that supposedly belonged to Napoleon are also open.
Personal artifacts of Roger Morris, George Washington, Eliza Jumel and Aaron Burr are part of the museum's collection.
An archive and reference library is located in the house's third floor.
The house was built as a summer villa on a parcel comprising an area of 130 acres. Thus, the Morris property covered some distance from Harlem all the way to the Hudson River. It is an early example of the Palladian style of architecture. Morris, whose uncle was a successful architect in England, was influenced by Palladio, a 16th-century Italian architect. His design included a double-height portico and triangular pediment – innovative features for 1765 – supported by grand Tuscan columns, and a two-story octagonal room at the rear of the mansion, which is believed to be the first of its kind in the country.
The remodeling by the Jumels c.1810 was in the Federal style current at the time, and included the entrance.
The house has been said to contain "some of the finest Georgian interiors in America." Today, the house is lavishly decorated with period furnishings and careful reproductions of period carpets and wallpaper. It features nine restored rooms, one of which was Washington's office. The dining room and Eliza Jumel's bedchamber, with a bed that supposedly belonged to Napoleon are also open. Personal artifacts of Roger Morris, George Washington, Eliza Jumel and Aaron Burr are part of the museum's collection. An archive and reference library is located in the house's third floor.
Morris–Jumel Mansion