A deep, steep-sided ditch c.9m wide circles the motte to the north and extends southward along the east flank of the monument, following the south-westward curve of a substantial 8m wide rampart. At its northern end, the rampart stops just short of the motte. At its southern end, it curves round to meet the edge of the sharp drop down into the valley of Rocher End Brook. This scarp forms a natural western defence to a small semi- circular bailey measuring c.15m x 30m, though it is likely this edge was also palisaded. A low bank running between the scarp and the motte ditch at the northern end of the bailey is all that survives of another section of rampart. A causeway across the motte ditch just south of this was a point of access to the motte from the bailey. Access to the bailey seems to have been from the south-west or, alternatively, from the east across the outer ditch, where a route up from the village and church would have passed through the gap between motte and rampart. A ditch also divides the bailey from the east rampart. (Scheduling Report)
The bailey place name is probably derived from bailiff rather than a reference to the enclosure attached to the motte. Presumably after the castle was abandoned as a lordly residence it remained the site of the estate manager, or bailiffs, house and probably also the site of the manorial court.
The very rocky local soil must have been difficult to dig and this castle represents a considerable effort.