The Rich-Twinn Octagon House, located in Akron, New York, is a historic octagonal residence built between 1850 and 1857 by Charles B. Rich. It was designed as a showcase home, inspired by the mid-19th-century octagon house movement and Orson Squire Fowler's influential book. The house is a 3,500-square-foot structure with three floors and a cupola, featuring Greek Revival and Italianate architectural elements. It is the only 19th-century octagon house in Erie County. The property was acquired by the Newstead Historical Society in 1981 and has since been restored and listed on the National Register of Historic Places. Today, it operates as a museum managed by the society, showcasing its mid-19th-century appearance and serving as a research center for local history.
