Tullymurry House is typical of Georgian country house style, two storey, well proportioned, largely symmetrical and the destination point at the end of a long driveway.
The house is constructed of rubble stone walls, probably of Mourne Granite, this would have been the type of stone quarried closest to the house and therefore most easily transportable. As rubble stonework is uneven in pattern the house was then harled, a process where the wall is covered in lime render. Harling provides a long lasting, weatherproof shield.
Tullymurry House was constructed from materials that were local to the area in which it is located. This reduces the damaging effects to the environment of transporting materials long distances, by road, sea and rail.