Greymont Castle is a rectangular fortress with a gatehouse in one corner and a large keep in the opposite corner. The small bailey includes a great hall, a stables, and some smaller buildings.

The entrance to the castle is protected by a barbican, a drawbridge, and a gatehouse with a double set of doors and portcullises.

Including the barbicon and ramp, Greymont Castle is 22" x 28.5" (91 x 71 studs) and stands about 18" high.

Greymont Castle is inspired by Goodrich Castle in Herefordshire, England, but it is not intended to be an exact reconstruction.