Opened to the public as a historic house museum in 1988, Darnall’s Chance House Museum is dedicated to the interpretation and study of the history and culture of 18th century Prince George's County, Maryland, with special emphasis on the lives of mid-18th century women. The Museum seeks to interpret the story of Lettice Lee, who lived at Darnall's Chance in the decades just prior to the American Revolution. The house and grounds reflect 1760, the year Lettice Lee’s first husband died and a room by room inventory was taken of the contents of the house.
Darnall’s Chance House Museum conducts guided house tours on Fridays and Sundays and by appointment. In addition, the museum offers educational programs, exhibits and special events throughout the year. A patio tent is available for rental functions from May to October.
Darnall’s Chance House Museum is listed on the National Register of Historic Places, The National Underground Railroad: Network to Freedom Trail, and the Star-Spangled Banner National Historic Trail.