Hazelwood House, Sligo, Country house in Calry, Ireland

Hazelwood House is a Palladian country house on a peninsula in Lough Gill, County Sligo. It has a five-bay by three-bay main block of three storeys, with two-storey wings linked by single-storey quadrants, built of limestone ashlar with slate roofs. A three-bay, two-storey wing was added to the west side in the 1870s.

The house was designed in 1731 by architect Richard Cassels for Lieutenant General Owen Wynne and was one of the first Palladian country houses in Ireland. During World War II, the Irish military used the building as barracks before it was later converted into a psychiatric facility.

The townland's original name, Annagh (Irish: Eanach), means "marsh", and the land belonged to the Ó Conchobhair Sligigh, the Gaelic lords of Cairbre Drom Cliabh. An O'Conor castle stood at Castle Point on Lough Gill, south of the present house, according to O'Rorke (1889). The estate's sale in 1635, when Sir Phillip Perceval was accused of tricking O'Conor into selling, fed the hostility that led Sligo's Gaelic gentry into the 1641 rebellion.

The house itself is boarded up and in poor repair, so visits centre on the Lough Gill Distillery opened on the grounds in 2019. The estate lies about 2 km south-east of Sligo town on a peninsula in Lough Gill; the wooded demesne, once 15,000 acres, is now around 70 acres. Look for the 1822 gate lodges designed by Martin Geraghty.

The Army cyclist squadron that was housed here during the war is a little-known chapter in the property's history. This unusual military use shows how the house was repurposed for completely different functions across the decades.