Why this matters
Built in the 15th or 16th century, Castle Glenahilty was likely held by a local Gaelic or Anglo-Irish family, reflecting the mixed settlement patterns of west Ulster. It is remembered as a rare surviving example of a tower house in the region, documented in the 17th-century Civil Survey.
Overview
Castle — Glenahilty is recorded as Castle — tower house in Tipperary. Situated on a rise in rolling pastureland. Described in the Civil Survey (1654-6) as 'The ruined Castle of Glanehelty ye walls standinge' (Simington 1934, vol.
Who built and held it
The saved account records: Described in the Civil Survey (1654-6) as 'The ruined Castle of Glanehelty ye walls standinge' (Simington 1934, vol.
Attack, change and use
The saved account records: Situated on a rise in rolling pastureland.
What survives
The saved account records: wall T 1.4m) appears to be constructed of limestone with dressed quoins - it has an external dashed render and a high base-batter (H 3.45m
Why it mattered
Castle — Glenahilty matters because the source ties castle — tower house to this exact landscape and preserves evidence that a bare map name loses. The saved account adds: The external W face is the only side not blocked by later building, however, it has been completely re-modelled, with original fenestration replaced.
History checked 15 August 2026 against the named sources below.
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