From the National Register: "This one-story, stone structure...was the charcoal shed for the "steam and water cold-blast charcoal furnace" built here in 1845....Converted to a residence c. 1950, the building is coursed stone with a slate gable roof and an interior brick chimney. The roof's bargeboards are sawn into a distinctive wavey pattern. Other woodwork, doors and window frames, dates to the 1950 adaptive reuse but, when the shed was converted into domestic use, great care was taken to duplicate the original design. Some window openings date to 1950; in the east and, the original door was made into a widow and a new door was opened south of it. The three-bay north side originally had a center door and two windows but it now has a center door with two windows to the east and two to the west."