12 Church Street, including rear range

12 Church Street is a late-Georgian style, 2-storey house built as a pair with No 13, although the two are not symmetrical. The exterior features whitened pebble-dashed walls, a slate roof, and a brick stack on the rear slope. The front has two windows with 12-pane hornless sashes, and the doorway is offset to the left end, featuring a replacement 2-panel door in a wooden surround with brackets that support a projecting hood. On the right side, there is an entrance to a through-passage that originally led to a cider mill and orchard at the rear; this passage was open but now has a modern boarded door.

The rear of the house is weatherboarded, with inserted French doors in the upper storey above the passage. A lower 2-storey rear wing was remodeled in the late 20th century, featuring similar weatherboarding to the main range and modern windows and doors. Attached to the rear wing is the lofted former cider mill, which has a long weatherboarded wall that is partly patched and a rubble-stone gable end. The rear wall, visible only from No 11, consists of a rubble stone wall with modern weatherboarding above.

Inside the main house, the interior has been modernized. However, in the rear wing, there is a timber-framed partition and a closed truss that includes a cambered tie beam and raking struts, likely dating from the 17th century. The height of the truss suggests that the rear wing was originally one and a half storeys tall before being raised to two storeys.