Today all that remains of this great fortress are massive earthworks. These consist of a great motte which was once crowned by a keep. Beneath this is a rectangular bailey which is still deeply ditched. The remains of two barbicans can still be made out that approached the entrances to motte and bailey. The earthworks suggest at least two round towers stood in the bailey enceinte* as well as a hall block. The outer earthworks have cavaliers in them which are similar to those found at Berkhamsted castle.

* enceinte (from Latin incinctus: girdled, surrounded), is a French term used technically in fortification for the inner ring of fortifications surrounding a town or a concentric castle.