Coordinates: 53°43′41″N 6°17′37″W / 53.728055°N 6.293583°W
Beaulieu House and Gardens is an estate in Drogheda, Co. Louth, Republic of Ireland. It was thought to be built in the 1660s, although later research seems to suggest it was built around 1715, and it includes a terraced walled garden. It is located 2 miles (3.2 km) east of Drogheda less than half a mile from the estuary of the River Boyne.
The lands around the current Beaulieu were owned by the de Verdun family at the end of the 12th century. The Plunkett family, originally from Dublin, married into the de Verduns and became associated with the area from the early 14th century onwards. The Plunketts had to surrender the lands after the Confederate war in the mid-17th century.
The predecessor to the present house was a Jacobean manor house constructed in 1628.
Sir Benjamin Tichborne, 1st Baronet of England (c.1540 – 6 September 1629), MP for Petersfield 1588-1589 and Hampshire 1593 had a younger son and judge, Sir Henry Tichborne who went on to defend the attempted siege of Drogheda in 1642 in the Irish Confederate Wars. Henry was awarded lands at Beaulieu in 1666 and the manor on which to rebuild if he wished and he did so with the input of two further generations.