Snook and Atwood had originally planned to face the building in light Ohio limestone with red and black limestone trim. This stairway wrapped around a light well that measured perhaps 60 by 40 feet (18 by 12 m) wide. At the northeast end, to the right of the main hallway, is a small arch leading to the main stairway. A small community center we designed for the Pinewood (as it was known until recently) development in Fayetteville, Georgia. The siteplan and ground floor plan showing the community garden and Nugget. Directly above the main entrance are a French door and a balcony on the second floor. The dining room and Eliza Jumel's bedchamber, with a bed that supposedly belonged to Napoleon, are also open. Eliza Jumel's grandchildren scraped a diamond on the glass to determine whether the diamond was real. Burr and Eliza Jumel. Personal artifacts of Morris, Washington, Jumel, and Aaron Burr are part of the museum's collection. When the Morris-Jumel Mansion became a museum, it was re-furnished to reflect the decorations that existed when Morris, Washington, and Jumel occupied the mansion. The mansion consists of two sections. Between the two sections on Fifth Avenue was a courtyard leading to an entrance portico.

The mansion had a brownstone facade as well as a courtyard and portico separating the two sections. The house was deteriorating: the paint on the facade was peeling, and one of the portico's columns collapsed in late 2022. The New York Times described the house in late 2023 as being in such poor condition "that it is possible to touch it and walk away with a moist, splintered clump of wood siding in the palm of your hand". Additionally, the mansion has been described in The New York Times as one of Manhattan's oldest buildings of any kind. Because there is a caretaker's apartment in the house, it is also Manhattan's oldest building that is still technically in residential use. The Morris-Jumel Mansion is the oldest surviving house in Manhattan. However, the structure was a single mansion built at one time, with three residential units across two sections. It is interrupted by two landings where the stair turns 90 degrees. Two decades after the house's completion, Herbert Croly wrote that the exterior was "far from interesting" while the brownstone "indicates a blind ignorance of the drift of American architectural advance".

There are two large rooms on either side of the passageway. There are a lot of reasons why it may be preferable to acquire a billiard and pool hall instead of starting a new business venture. Market analysis begins with the identification of competitors around you and clear explanation of how your business will be different from others. Both business owners noticed how their customers would shift back and forth their establishment, enjoying some games and then going back to Busters for drinks. This is looking back from that space into the kitchen. This space is designed in a similar manner to the parlor. To the left of the entrance and main halls are the parlor and the library, respectively. The fireplaces in the parlor and library both had "hob grates", installed around 1827 for burning coal. A gutter was installed on the roof in the early 19th century, replacing the basement gutters. At the bottom of the basement walls is a stone gutter measuring 22 inches (560 mm) wide.

The upper walls ranged in thickness from 36 to 8 inches (910 to 200 mm). Mosaics also decorated the vestibule's walls. The structure was built with a wooden frame, Cost of Opening a Billiards Parlor with brick exterior walls to keep out the heat. There are three asymmetrical chimneys: one each above the eastern and western walls of the main mansion and one above the annex. When the mansion became a museum, part of the basement became a one-bedroom apartment for the house's caretaker, who lives there rent-free. There is a two-story octagonal annex with a drawing room at the rear of the mansion, which may be the first of its kind in the U.S. The more relaxed family room is in the central portion with the 2 arched openings. Along the Fifth Avenue elevation, the central portion of either section was recessed from the outer windows. When the house was completed, the public could visit the art gallery in the southern portion on Thursdays between 11 a.m. Frick and his wife renovated the southern portion of the mansion at a cost of $100,000 (equivalent to $2,629,000 in 2023), with plans and construction oversight by Hunt & Hunt. Toronto Star claimed that the mansion was the first Palladian-style structure in North America.