The fortification consists of a circular motte, rising between 6 and 8.7 metres high with a base diameter of approximately 29 metres, narrowing to a summit that measures 10 by 12 metres. A defensive ditch, or fosse, runs along the northern to eastern sections, measuring 2.5 metres wide at its base and expanding to 5.8 metres at the rim, with a depth of around 1.65 metres. This fosse separates the motte from what remains of an associated bailey to the east-northeast.

The bailey, which would have served as an enclosed courtyard for everyday activities and additional defences, originally measured about 17 metres east to west and 49 metres north to south, reaching heights of up to 6 metres. However, significant portions of the northeastern and eastern sides appear to have been excavated away over time, substantially reducing its original footprint. Archaeological surveys suggest this damage has considerably altered the bailey’s original dimensions and defensive capabilities.

An intriguing later addition can be found on the southwestern side of the mound; a rampart-like structure measuring approximately 10 metres wide, 18 metres long and up to 2 metres high. This feature was built directly against the face of the motte, indicating it was constructed sometime after the original fortification. Interestingly, whilst the fosse is clearly visible between the motte and bailey remains, no trace of it survives elsewhere around the structure, suggesting either selective construction or subsequent infilling of these defensive ditches.