Contact: Ciaran Murphy
Open: May 1-31, Aug 1-31, 5pm-9pm
Fee: adult/student €5, child/OAP free, group discount available
I haven’t visited Barntick yet but this is the information which I have gathered so far. The National Inventory of Architectural Heritage tells us:
“Detached three-bay two-storey house, dated 1665, and renovated c. 1740. Hipped slate roof with red brick chimneystacks. Roughcast rendered walls with string course between ground and first floors and moulded eaves course. Timber sliding sash windows. Carved limestone door surround comprising shouldered surround with entablature above, approached by flight of limestone steps. Timber panelled double leaf doors. Retaining interior features. Attached single-bay single-storey outbuilding to right. Date plaque from house moved to outbuilding. Rendered gate piers to site with wrought-iron railings.” 
An article in the Irish Times by Mary Leland published Saturday April 13th 2019 tells us a little more:
“Plantation House, barracks and now a farm, Barntick House in Co Clare was built in 1665, renovated in 1740 and survived through the families of Hickman, Peacocke, Lyons and Murphy.
“In 2016 it was a case of do something or let it go completely,” Ciaran Murphy says. “But all the aesthetics are still in place and after the childhood I had out there I had to do something. Revenue was very helpful: once you adhere to the guidelines there’s no problem.””