The Romanesque upper bailey was built in a spectacular location on a wild, deeply clefted rock formation above the market town of Wellheim.

Of its former palas and the other buildings of the main castle, only parts of the exterior walls and enceinte remain.

In the north rises the mighty, quadratic tower of the bergfried, made of rusticated ashlar blocks with channelled joints.

The roughly 35-metre-high tower is topped by a later, brick, upper storey (with round arch window openings) that once had a saddle roof.

The moat is secured on the steep eastern hillside by a retaining wall, which was reinforced on the outer side by a square flanking tower.