Thomastown Castle, Thomastown

Thomastown Demesne
Co Tipperary


  • NIAH Ref: 22206025
  • Date: 1650 - 1815
  • Rating: National
  • Orig. Use: Country House
  • Townland: Thomastown Demesne
  • County: Tipperary South
  • More Info: Click Here
  • Last Reviewed: August 2019

Criteria for Risk

  • Suffering from neglect and/or poor maintenance
  • Suffering from structural problems
  • Abandoned ruin


  • Condition of Structure: Ruinous
  • Level of Risk: High


The building is a roofless shell. None of the original fabric remains other than the external walls. It is suffering from structural problems that could lead to full or partial collapse, and there is an immediate threat of further deterioration.

The atmospheric ruin of the great seat of the Mathews, now largely shrouded in ivy. Central block was a 17th century house constructed by George Mathew, half brother of the 1st Duke of Ormond, now largely collapsed. Building dramatically altered in the early 19th century with new wings and four slender towers to front by Richard Morrison. House was childhood home of Father Theobold Mathew, "The Apostle of Temperance". The fortunes of the family declined and house fell into ruin by the late 19th century. Surrounding it are the remains of the 17th century formal gardens overlaid by 19th century work. Consolidation is now required to arrest further deterioration of the ruin.

Recommended Use

  • Conservation

Photograph Credit: Moanteen (