Clonalis House

Popularity

About this place

Clonalis House (Irish: Teach Chluain Mhalais) is an historic manor house in Castlerea, County Roscommon, Ireland, and the ancestral home of the O'Conor Don, who are direct descendants of Cathal Crobhdearg Ua Conchobair, King of Connacht, a younger brother of Ruaidrí Ua Conchobair, the last High King of Ireland. The current building was constructed in 1878 by Charles Owen O'Conor as a replacement for an earlier house on the same site which was frequently damaged by flooding. Built of mass concrete, its design by Frederick Pepys Cockerell is of a mixture of styles drawing on the traditions of Italianate and Queen Anne Style architecture. Its history reflects the turbulence of Irish history, having once been occupied by the Irish Republican Army before it was shelled and captured by Free State Forces during the Irish Civil War . Some 100,000 volumes are contained in the family archives and library of the O'Conor Don which are still held at Clonalis House, making it a valuable repository of Irish history.

Summary from Wikipedia (CC BY-SA 4.0)

Updated 2026-11-14 Suggest an edit / Report issue

Getting There & Parking

Clonalis House is located in County Roscommon, roughly 86 km (1h 15m drive) from Galway and 200 km (2h 55m) from Dublin. The nearest public car park is 1250 m away. Nearby highlights within a short drive include Cloonalis House (0.5 km away).

Galway86 km

~1h 15m drive

Limerick159 km

~2h 20m drive

Dublin200 km

~2h 55m drive

Nearest car park

1250 m from landmark

Directions to car park ↗