12 Shane's Terrace, Shane's Street, Randalstown, Antrim, Co Antrim, BT41 2AB

12 Shane's Terrace is a mid-Victorian terrace house of distinctly proportioned design built in the 1860s for workers on the Shane's Castle estate. Although it has lost some original features—most notably the lattice glazing to its front windows and fanlight—it remains part of a group of definite character within the terrace.

The house is a single-storey building with an attic, constructed of coursed hammer-dressed basalt rubble with fine recessed jointing and red brick dressings. The roof is laid with Bangor blue slates in regular courses with dark-toned ridge tiles. It features one small original flush rooflight to the right and an original gabled dormer to the left. The dormer roof is slated in Bangor blue, with timber barge boards of fretted pattern and slated cheeks. The dormer front contains a rectangular timber fixed light with a side-hung casement, all plate glass in a timber frame, with horizontal boarding to the gable above. A chimney sits on the ridge to the left extremity, shared with the adjoining house, constructed of red brick with a projecting brick cornice and three pots, with two television aerials attached. Three courses of modern red brick form a rebuilt blocking course, wider and deeper than the original. The eaves feature a projecting red brick course, with cast iron guttering and downpipe.

The front elevation faces south-west and contains one window to the left of the doorway, both set in red brick block surrounds with flat arches to the head. The window is a rectangular timber sliding sash, vertically hung 1 over 1 with horns and exposed sash box, with a projecting concrete cill. The doorway holds a modern rectangular timber 2-panel glazed door with translucent glazing beneath a translucent glazed rectangular fanlight, all in timber surrounds, with a modern metal letterbox and modern tiled doorstep level with the front path.

The rear elevation extends two storeys, with the original rear wall and rear return built up beyond the original height. The rear roof is Bangor blue slates above a later extension with a flat roof. The walls are rendered with wet dash of crushed black stones, with a timber fascia to the eaves, PVC gutters and downpipe, and a PVC soil pipe. Modern rectangular timber windows consist of fixed lights with top-hung vents and projecting concrete cills. A modern rectangular timber 2-panel rear door with translucent upper glazing is positioned in the side of the rear return. The recessed area between rear wall and return is concrete.

The house stands within a terrace of fourteen houses facing the main road but set back with front gardens. The houses alternate in pairs with handed plans. The front garden is grassed with a concrete paved path leading to a modern painted iron gate set in painted square timber posts, bounded by hedges. A gravelled communal driveway runs across the rear elevation, beyond which stands a line of basalt rubble outhouses or garages, some rendered. The detached garage for this house features Bangor blue slates, PVC gutter, metal downpipe, and a modern steel up-and-over door.

The terrace was built by the O'Neill family, appearing for the first time on the Ordnance Survey map of 1903, with the site shown as empty on the 1858 map, suggesting a date of construction in the 1860s. An old photograph shows diagonal pattern quarry glazing in the windows of the west gable, and a 1970 survey recorded that one house retained lattice-paned sashes to the front and fanlight, indicating that all windows were similarly glazed originally.