Landed Estates
University of Galway

Ballybay House

Estate(s)
Townland Knocknamaddy
Civil Parish Ballybay
PLU Castleblayney
DED Ballybay Rural
County Monaghan
Barony Cremorne
Description Ballybay House, also known as The Castle, was the home of the Leslie family, designed by John Keane and built in 1830. It was located a short distance from the town. It was described by Lewis in the 1830s as a ‘handsome and beautiful mansion situated on the border of a lake and backed by some extensive plantations’. In the mid-19th century its rateable valuation was £120 and it was the home of Emily Leslie. By 1906 this valuation had risen to £140. It later became the home of Edward John Henry Leslie (1890-1966), British Ambassador to Rome. The house was burnt down in 1921. The walled garden and some outbuildings remain.

Property Location