The Rhug Estate in Denbighshire is the main estate and home to the head office of the Newborough Estates, which include Peplow in Shropshire  and Glynllifon in Gwynedd.

The Rhug Estate covers 12,500 acres extending from Gwyddelwern in the north, Carrog to the east, Cynwyd to the south and Maerdy to the west. The 2,500 acre in-hand organic farm is the geographical core of the estate along with  Rûg   Mansion  the main residence.

The remainder of the estate has about 170 tenancies including: let farms, in hand and let forestry, let cottages, commercial premises and storage, traditional sporting including shooting and fishing, modern sports such as rally car driving, gorge walking, mountain biking, canoeing and public events.