The square tower ruin made of unplastered Ruhr sandstone rises 13 meters high on a two-meter-high hill with a diameter of 25 meters and has a floor plan measuring 7.80 by 7.80 meters. Its northeastern half has collapsed, but the former three tower floors - formerly 16 meters high - can still be clearly seen.
The preserved base floor has outer walls 1.70 to 1.80 meters thick and is occupied by a 4.25 meter wide interior that is 5.50 meters high and closed off by a barrel vault. The ground floor of the tower has a fireplace, a toilet and slit windows. The first floor rises above this with a height of around 5.20 meters and a wall thickness of around 1.35 meters.
At its western corner, the tower ruins are joined by the remains of the former curtain wall made of quarry stone, which enclose the tower in an arch from west to east and secured it on the land side in the 14th century. On top of the remains of the wall, on the western corner of the residential tower, is a partially preserved circular building with a diameter of 3.10 meters and a wall thickness of 60 centimeters. The remains of another extension are on the eastern corner of the tower. In front of the curtain wall, the former moat can still be seen as a three-meter-wide depression on the north side of the castle.