Octagon Cottage is an octagon house in rural Barren County, Kentucky, near Rocky Hill, Kentucky. It was listed on the U.S. National Register of Historic Places in 1983. It once had four octagonal outbuildings; only one, an office, survived when the property was listed. Recent coverage, including a photo. References Houses completed in 1850 National Register of Historic Places in Barren County, Kentucky Octagon houses in the United States Houses in Barren County, Kentucky Houses on the National Register of Historic Places in Kentucky 1850 establishments in Kentucky