 The north-east corner is occupied by the remains of the 12th-century hall complex, built from flint stone, with green sandstone dressings and Roman tiles, and comprising a solar, a hall and forebuildings, of which only the foundations now survive.The solar itself was located on the first floor of the building, with its undercroft forming a separate apartment, probably for the use of the castle bailiff.The first floor of the hall would have been used for public business and living space, and the undercroft used for storage or living space.