Mark Bence-Jones. A Guide to Irish Country Houses.[originally published as Burke’s Guide to Country Houses volume 1 Ireland by Burke’s Peerage Ltd. 1978; Revised edition 1988 Constable and Company Ltd, London.] 

p. 30. “(Donelan/LGI1912; Mahon/LGI1912 and sub Mahon, Bt/PB) A long low and narrow 2 storey C17 house with an old castle at one end of it, the seat of the Donelans…subsequently became the seat of a branch of the Mahon family. One wing was burnt sometime ante 1913. The house is now in ruins.” 

Not in national inventory 

Listed in Vanishing Country Houses of Ireland by The Knight of Glin, David J. Griffin and Nicholas K. Robinson, published by The Irish Architectural Archive and The Irish Georgian Society, 1988.