Situated off the southern end of the village centre, on the edge of the limestone plateau which forms the Gower peninsula, Weobley Castle held a strategically ideal position for defence.

Castle plans show it had a rectangular keep with round corner towers and walls 12 feet in thickness. The outer walls had a gateway to the north and six round towers. Encircling the castle was a deep fosse.

Two dwelling houses were located north of the keep in the bailey area, which was oval-shaped and 75 meters long and 65 meters wide. A large rampart survives on the east side and a ditch on the west side.

The series of buildings which comprised the castle were grouped around an open courtyard entered from the west, with the hall located on the north side and the private quarters between the hall and the gateway. The completion of the hall and adjoining buildings dates to the early 14th c.

The hall was located over a basement kitchen and was entered through a porch block which was added late in the 15th c.

The entrance to the hall from the lobby was through a moulded stone arch. The fireplace was situated on the north side, opposite the window opening which was used to light the dais end. It would have resembled the opening on the east window.

This east window was made of two tall lights with cusped, weather-worn heads retaining its chamfered mullion and transom. The window bay had moulded jams and a rear-arch, wide enough for a seat on each side.

Externally it appears that the window, dating from the 14th c., was inserted into the older wall of the hall.

A small doorway was set between the fireplace and the window and other doorways led to rooms over the porch and into the turret.