sentences:  The castle remains the home of the Earl of Cromartie, and is open to the public on a limited number of days.A compact L-Plan tower house, built of red sandstone, forms the earliest part of the castle, and may be based on a 15th-century building.An additional section was later added in the re-entrant angle, making the castle square in plan, and accommodating a larger staircase and extra bedrooms.