Rockville, 49 Main Street, Portpatrick

Rockville is a 2-storey house with a basement and attic, built in 1765. It has a rectangular plan and features a painted render on the southeast and southwest elevations, while the northwest elevation is made of exposed rubble. The windows have margins.

On the southeast elevation, there are steps leading to a central bay that is advanced and has a pediment. This bay features an oversailing basement recess and a pilastered doorpiece with a consoled cornice. The entrance has a 4-panel timber door with small ogee-headed panes in the fanlight above. To the right, there is a basement window, a single window at the first floor, and an oculus in the tympanum. Flanking the central bay are single windows in the recessed bays at the basement, ground, and first floors, although there is no basement window to the right.

The northwest elevation has regular window placement on all floors, although the windows at the basement and ground floor on the outer right have been infilled. There is a small window in the attic at the base of the wallhead stack.

On the southwest elevation, there are two small adjoining outbuildings at the basement, with a lean-to on the outer left and a gabled entrance on the outer right. This elevation also features two single windows at the ground floor, a single window to the right at the first floor, and two small single windows in the attic.

The windows on the southeast and southwest elevations are 4-pane timber sash and case, while the northwest elevation has 9-and 12-pane windows. There is a rooflight on the northwest side. The roof is covered with grey slate, featuring stone skews, square skewputts, and corniced gablehead stacks, along with a central wallhead stack on the northwest with circular cans.

The boundary walls are made of coped painted rubble.