Friendship House was built in the mid 1700s on a site overlooking Nanjemoy Creek in western Charles County by a member of the Dent family. The "Friendship" Dents were actively involved in their community, serving in prominent positions in county and state government. The house has a unique architectural style originating in medieval England, and features such as the steep pitch of the roof and the Hall and Parlor design with timber framing were common to the houses of prosperous English farmers. Friendship House is typical of a Tidewater settler's home for the 1700s. The original house was constructed in two stages, with the first stage consisting of a Hall that served as a living room, dining room, and perhaps bedroom, with a small Bedroom Chamber above it and a stone-walled, earthen-floor cellar immediately beneath the Hall. Later, two other rooms were added, a downstairs Parlor and a second upstairs Bedroom Chamber. The original exterior walls were constructed of brick noggin, and clapboard was added later with a layer of mud for insulation between the brick noggin and the clapboard. Wood shingles were used for the roofing, probably replacing an original marsh grass roof.