Walled Garden, Holylee House

The Walled Garden at Holylee House dates from the earlier 19th century and features a later glasshouse. It has an irregular plan with an arched north wall and a serpentine south wall, with buttressed angles that create additional fruit walls. The structure is built from coursed random whinstone rubble topped with thin ashlar copes. The entrances are defined by droved tabbed quoins and smooth margins.

On the southwest elevation, there is a lean-to timber and brick glasshouse on the right, which has a door in the left return. Partial remains of whitewash on the walls suggest that a larger glasshouse existed in the past. An additional range of brick, timber, and glazing forcing frames is attached to the low front wall of the glasshouse. The rest of this elevation features a high blind curved wall with a shared angle buttress to the west.

The southeast elevation has a shorter high wall with a shared angle buttress at the southeast corner, along with various later sheds and structures nearby.

The northeast elevation includes a high wall with a large rectangular cart entrance on the extreme right, adjacent to the northwest angle buttress. This entrance has a sliding corrugated-metal door and a shared angle buttress at the north angle.

The northwest elevation presents a straight high wall with shared buttresses at the angles. There is a timber boarded entrance door on the right, framed within a tabbed surround.

The glasshouse features multi-paned, overlapped glazing with ventilators near the ridge, and there is a semi-glazed timber panelled door. Inside, the walls remain, but the original formal layout has been lost.