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 castle was constructed in a motte and bailey design, with a dam used to transform marshy land into Skipsea Mere, which then connected to the sea via a channel. The complex had its own private harbor, likely including a boatyard and a freshwater fishery.