This O’Molloy stronghold, once a symbol of the family’s local power, now consists mainly of foundations and partial walls reaching just one to two metres in height. The south and west walls remain the most intact, with the western section stretching 12 metres before a later northern extension adds another three metres to its length.

The castle’s connection to the O’Molloy family runs deep into local history; a headstone in nearby Lynally commemorates Constantine Molloy of Cully, who died in 1683, suggesting the family’s presence here extended well into the 17th century. By 1974, when the Offaly Historical and Archaeological Society documented the site, the eastern wall had already been incorporated into a cottage, though that structure has since been destroyed, taking with it another piece of the castle’s original fabric.

Perhaps the most intriguing element of Cully Castle’s story is its missing armorial stone, which was removed from the ruins and transported to America during the 1930s. This carved heraldic emblem, once proudly displayed on the castle walls, now resides thousands of miles from its original home, serving as a tangible link between the Irish diaspora and their ancestral lands. What remains at Cully offers visitors a glimpse into the network of fortified houses that once dotted the Irish midlands, where local families like the O’Molloys maintained their authority through these modest but strategically placed strongholds.