 Only the motte mound of the old castle remains today, standing 12 metres high with a maximum diameter of 80 metres, although impressions of the bailey can be seen in the surrounding fields.Much of the site has degraded due to the sandy soil conditions./ 

Twthill is currently in the care of Cadw and is open to the public all year round.Admission is free and the castle is accessed via a 400-metre public footpath across agricultural land.