The oldest and largest Palladian country house in Ireland, Castletown is also one of the very finest. Its plain, grey but elegant facade, built in the style of a sixteenth-century Italian town palace, conceals a wealth of beautiful and fascinating interior detail. The house was built for William Conolly, son of a Donegal publican who, as legal adviser to William III, became the wealthiest man in Ireland from dealing in forfeited estates after the Battle of the Boyne. Though construction began in 1722, under first the Italian architect Alessandro Galilei and then his acquaintance, Edward Lovett Pearce, the interior was still unfinished at the time of Conolly’s death seven years later. A second phase of work began in 1758, when great-nephew Tom Conolly married the 15-year-old Lady Louisa Lennox, who set about altering and redecorating the house to restrained, Neoclassical designs by Sir William Chambers, the architect of the Casino at Marino, Dublin.

Book through Rough Guides’ trusted travel partners

Ireland features

The latest articles, galleries, quizzes and videos.

6 of the best road trips in Ireland

6 of the best road trips in Ireland

The Republic of Ireland’s phenomenally popular Wild Atlantic Way takes in a dizzying 2500km coastal route from Cork to Donegal, but not all of us have three w…

02 Jan 2018 • Rachel Mills insert_drive_file Article
20 picturesque Christmas destinations

20 picturesque Christmas destinations

Dreaming of a trip this Christmas? We're here to help. From glittering cities to a few snowy escapes, here are 20 classic destinations for a festive break. …

12 Dec 2017 • Rough Guides Editors camera_alt Gallery
The most beautiful country in the world – as voted by you

The most beautiful country in the world – as voted by you

There's nothing like an amazing view to inspire you to book your next trip, whether you're drawn by rolling countryside, isolated islands or soaring mountain …

30 Aug 2017 • Rough Guides Editors camera_alt Gallery
View more featureschevron_right