Truncated, two-storey, circular stone tower. The building is a former windmill, adapted as a defence post with inserted
concrete floor and five wide splayed concrete embrasures fitted with Turnbull mountings at 1st floor level. Steel rungs
set in wall allow access to hatch in floor. During WW1 it probably served as a machine gun post. It was probably an
observation post during the Napoleonic Wars [WW2 use not stated]. External diameter 6.09m, walls 1.25m thick, 3.6m high.