The castle took the form of a motte and bailey design, and a dam was probably constructed to turn the surrounding marshy, low-lying land into an artificial lake, called Skipsea Mere, in turn connected the channel leading to the sea. The complex had its own private harbour, and probably a boat yard and a fresh-water fishery.
The description details the castle's layout, including its motte and bailey design, dam construction for creating an artificial lake (Skipsea Mere), connection to the sea through a channel, and the presence of a private harbor with potential facilities like a boatyard and a freshwater fishery.