The castle contains an 'Oak Room' featuring an intricate ceiling carved from the wood of the surrounding ancient oak forest.
The structure was designed by Francis Johnston, who is also the architect behind the General Post Office in Dublin.
The grounds contain some of the oldest and largest oak trees in Ireland, with several specimens dating back hundreds of years.
The building's design includes hidden priest holes and narrow servant passages integrated into the thick masonry walls.
The castle served as the backdrop for several film and television productions due to its preserved period aesthetic.
Charleville Castle is a Gothic Revival structure located within a centuries-old oak forest in the Charleville Demesne, Tullamore. Designed by Francis Johnston, the castle features intricate limestone towers, a vaulted dungeon, and surviving secret internal passageways. The estate was the seat of the Earls of Charleville and remains a volunteer-run site managed by the Charleville Castle Heritage Trust. The structure is noted for its high-quality plasterwork and significant ceiling heights within its primary reception rooms. Much of the original structure has undergone extensive ongoing restoration to stabilize its historical integrity. It is widely recognized in Irish folklore as one of the country's most active sites for reported paranormal occurrences.
The main exterior facade captures the full scale of the Gothic towers against the backdrop of ancient oak trees.
Wear sturdy, comfortable footwear as the castle floors and grounds can be uneven.
Check the official website for tour availability before arriving, as private events or restoration work can restrict access.
Bring a warm jacket as the interior stone walls remain cool regardless of the external temperature.
Attempting to explore the surrounding private forestry without guidance or walking off marked paths in the dark.
Operates on a seasonal basis; often closed for private events or restoration periods, so pre-booking or verifying status via the website is essential.
Respect all taped-off restoration areas; photography is generally permitted but check for specific restrictions on flash usage in delicate areas.