Located in the heart of Boyle, County Roscommon, King House is a striking example of early Georgian architecture, constructed between 1720 and 1740 for Sir Henry King MP.  The design is attributed to William Halfpenny, a protégé of Sir Edward Lovett Pearce, and features classical Palladian elements—such as Venetian windows and a pedimented roof-line—combined with fortified characteristics including vaulting and robust stonework.

Rich in architectural and cultural heritage, the mansion includes an impressive Long Gallery on the ground floor, adorned with stone tiles in the Carréaux d’Octagnes pattern and twin pedimented chimney-pieces made of fossilised Kilkenny limestone. Remarkably, all levels—including the basement—are vaulted, a rare feature intended to reduce fire risk.

Over the centuries, King House served multiple roles—as a family home, a military barracks for the Connaught Rangers and later the Irish National Army, and even as a merchants’ store. After falling into dereliction, the house was rescued from possible demolition and meticulously restored by Roscommon County Council in the late 1980s and early ’90s.

Today, the house functions as a vibrant museum and cultural centre, offering interactive exhibits that explore Gaelic Ireland, the story of the King family, and the military history linked to the Connaught Rangers. Visitors can wander among life-size figures, immersive displays, the county library, and a recreated jail in the basement—making history come alive for all ages.

Whether you’re a history enthusiast or simply curious, King House promises an engaging and enriching experience: it’s a grand Georgian gem, a place of transformation, and a cultural treasure at the heart of Boyle.