With a construction history dating to 1675, it is one of Connecticut's oldest buildings, and was an important meeting place during the American Revolutionary War.

[1] The Leffingwell Inn is located just south of the junction of Town and Washington Streets, at the southern end of the Norwichtown area.

It has many features dating primarily to the 18th century, including casement windows, wooden paneling, and several kitchen hearths, a further indication of the building's evolutionary construction history.

[3] Most of the architectural features of the house are the handiwork of Benajah and Christopher Leffingwell, who made the most significant alterations and additions in the 18th century.

Christopher, in addition to operating the inn, established Norwich's first paper mill, as well as a stocking factory.