Dark Hole Farmhouse (St. Leonard'S Cove Caravan Park)

Dark Hole Farmhouse is a house, likely dating from the early 17th century or earlier, with substantial remodelling and extensions in the 18th century and circa late 19th century. It has a bitumen-coated slate hipped roof with brick chimney shafts located centrally, at the ends, and to the rear.

The house originally had a four-room plan facing south, with the lower end situated on the east side. A rear axial passage, two stair turrets, and a single-story outshut are also present. The room to the left of centre may have originally been the hall, featuring an axial stack in its lower right corner. It appears that a cross and through passage, originally to the right of this stack, was altered in the 19th century, with a partition removed, the front doorway blocked, and a new entrance created. The rear outshut, likely dating to the 18th or early 19th century, and a two-story addition at the lower right end, were added later in the 19th century. The stair turrets at the rear suggest either an original open hall or a later subdivision of the house. A second front doorway is located to the left of the main front.

The south front is asymmetrical with four windows, featuring four gabled half-dormers with 19th-century three-light casements and slate-hung gables. Ground floor windows are also 19th century, consisting of two- and four-light casements with glazing bars. A blocked doorway is centrally located, with a 20th-century gabled open porch. A 19th-century plank door and a 20th-century greenhouse are positioned to the left and right ends respectively. The rear elevation includes two circular stone turrets, one to the right of centre and the other to the left, connected by a painted stone rubble outshut with a lean-to slate roof. A late 19th-century slate-hung outshut of two stories is attached to the lower left stair turret, originally open on the ground floor.

The interior has been largely modernized in the late 19th century, with most of the joinery dating to that period. The hall fireplace has a concrete lintel, and the lower end fireplace is 20th century. The ground floor was partitioned during the 19th century to create an axial passage at the rear. A 19th-century settle sits alongside the fireplace against the partition in the hall. The roof structure over the lower end incorporates straight principal rafters, halved and crossed at the apex, and halved, lapped, and pegged collars.