Knocklyon Castle, Tallaght, Co Dublin  

Bence-Jones, Mark. 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. 179. “three storey house with a medieval core. Round corner tower; mullioned windows. In 1837, the seat of W. Dunne.” 

Not in National Inventory