Durhamstown Castle, Tower house in Durhamstown, Ireland.

Durhamstown Castle is a four-storey tower house of rough grey and brown coursed limestone, its pitched slate roof carrying two tall chimneys, one at the left gable end and one right of the tower. The tower facade has a narrow window high on the left, a larger window below it and a small window high on the right; a lower single-storey wing with two small windows adjoins it. The ground floor holds four vaulted chambers with inserted windows, and a square tower at the east wall has a pointed door opening onto a spiral staircase.

The present tower house is thought to date from the early 15th century, though its exact origins are unknown; it has been lived in continuously since 1420. It is named after a Mr. Dorream (or Dorram), whose family lived there in 1511. In the 16th century it belonged to Walter Devereux, 1st Earl of Essex and Lord Deputy of Ireland under Elizabeth I; in the 17th century Sir Roger Jones, Lord Ranallagh, lived there, and his son Arthur, as Chancellor of the Exchequer, was caught up in a scandal in which the Irish Exchequer was diverted to pay for Charles II's mistresses. The Thompsons occupied it in the 18th century and the Roberts family in the 19th.

The name Durhamstown comes from a Mr. Dorream (or Dorram), whose family lived here in 1511. The pointed door in the east wall opens onto a spiral staircase, and the ground floor holds four vaulted chambers with inserted windows. The house has been lived in without a break since 1420 and now serves as a guest house and restaurant.

The castle stands in the townland of Durhamstown, County Meath, and has operated as a guest house and restaurant since Dave and Sue Prickett bought it in 1996. The 19th-century single-storey wing adjoins the old house to the north, so the newer part of the range is the one with the lower slate roof and two small windows.

Arthur Jones, son of the 17th-century occupant Sir Roger Jones, Lord Ranallagh, was Chancellor of the Exchequer when the entire Irish Exchequer was diverted to pay for the mistresses of Charles II. The scandal is attached to the house through his family.