Old Ferryhill House, 70 Prospect Terrace, Ferryhill, Aberdeen

Old Ferryhill House, located at 70 Prospect Terrace in Ferryhill, Aberdeen, dates from the mid to later 18th century. It is a single-storey house with a half-sunken basement and attic, featuring a rectangular plan in a plain classical style. The exterior is made of coursed tooled granite with polished sandstone dressings, including a base course, raised margins with projecting cills, strip quoins, and an eaves course.

The northeast elevation is symmetrical, featuring a 19th-century flat-roofed timber porch that projects at the center of the ground floor. This porch includes a panelled timber door flanked by glazed panels and a small-pane wide fanlight, with blank returns on either side. Above, the window is slightly obscured, while regular fenestration is present in the basement and ground floors of the flanking bays. The attic has a modern skylight, flanked by canted dormers on both sides.

The northwest elevation is also symmetrical and includes a small lean-to woodshed canopy with timber uprights and a slate roof at the center of the ground floor, which encloses a boarded timber door to the basement. Above this, there is a single window set in the gablehead.

The southwest elevation is symmetrical with four bays and features regular fenestration in the basement and ground floors. The center of the attic floor has a gableted tripartite timber dormer.

The southeast elevation is gabled and has a single window centered in the gablehead. The house predominantly features 9-pane and 12-pane timber sash and case windows. The roof is covered with graded grey slate and has a tiled ridge, with coped stone skews and curved skewputts. The gablehead stacks are made of coped granite and have circular cans, while the rainwater goods are cast iron.

The interior was not seen in 1999. The property also includes square-plan tooled granite gatepiers with pyramidal caps to the northeast of the house, along with random rubble boundary walls.