Great house

A great house is a large house or mansion with luxurious appointments and great retinues of indoor and outdoor staff. The term is used mainly historically, especially of properties at the turn of the 20th century, i.e., the late Victorian or Edwardian era in the United Kingdom and the Gilded Age in the United States.

Wentworth Woodhouse, Yorkshire, the largest private house in the United Kingdom.[1] Picture from A Complete History of the County of York by Thomas Allen (18281830)
Longleat House, Wiltshire, seat of the Marquesses of Bath
Rose Hall Great House, Jamaica