It is a
motte-and-bailey castle, thought to have been built soon after
the arrival of the Normans in 1066. The castle survives as earthworks. The motte is a mound of diameter and height , surrounded by a ditch of width about . There is a depression in the centre of the motte where there was 19th-century excavation, the monument being mistaken for a
barrow. Adjoining the motte to the north is the bailey; the bank enclosing the bailey is up to above the interior and up to across, with an external ditch of width about . ==References==