12-16 Carlton Street and attached walls and gate piers

Terrace of three houses with attached walls and gate piers, built circa 1820-30. The two houses on the right form a pair, while the left-hand house is a separate construction.

All three are built in thin courses of squared yellow stone with ashlar dressings and stone slate roofs. They are fronted by low coursed stone walls with ashlar domed copings and gate piers with moulded panels.

No. 16 (left) is two storeys with three first-floor windows and a central entrance accessed by a step. The door is six-panelled with an overlight featuring radiating glazing bars, set in a moulded stone surround with corner paterae and a raised shallow hood. The windows are single-pane sashes in plain stone surrounds. Wide stone dentils run along the eaves, and there are two end chimneys. At the rear, the building is partly obscured by an attached structure, but retains a back door and an altered ground-floor window (below ground level). A single-pane sash window survives to the right, with a small-paned round-arched stair window to the left.

Nos. 12 and 14 (right pair) are stepped slightly forward with a marginally higher roof line than No. 16. Each has an entrance at the outer end with a six-panelled door, overlight, and stone surround matching No. 16, plus two first-floor windows. No. 12 has eight-over-eight unhorned sashes with fine glazing bars; No. 14 has replacement twelve-pane windows with opening transoms. A central transverse rendered chimney and wide stone eaves dentils are common to both. At the rear, Nos. 12 and 14 each have a door with side window on the outer side and an arched stair window in squared stone surround above. No. 12 has a replacement two-pane window to the centre with an eight-over-eight sash above; No. 14 has twelve-paned windows similar to the front.

No. 16 retains a central hallway with dog-leg stair featuring a wooden handrail and iron balusters alternating straight and wavy (possibly later). The rear door is at the end of the hall, with basement access beneath the stairs. The front right room has a blocked fireplace and an arched alcove to the rear. The front left room has panelled built-in cupboards either side of the chimney breast (fireplace removed), as does the rear left room. Two upper rooms retain original wooden fire surrounds with grates removed. Narrow covings and the majority of doors are original.

No. 14 has its original staircase matching No. 16. The ground and first floors have been knocked through to form single rooms on each level, with all cornicing and other features removed. The attic is boarded out with a small skylight. The basement contains a kitchen and two other rooms.

No. 12 mirrors No. 14 externally but retains its original internal floor plan, with a hallway leading to two ground-floor rooms to the left of the staircase and basement rooms accessed from the rear of the hall. The rear entrance door opens from the hall, and there are three first-floor rooms and an attic room. The staircase matches those in Nos. 14 and 16. The front room has an original fireplace surround with classical moulding and original moulded cornice, with an inserted doorway to the rear room. The rear room has lost its fireplace. The two main first-floor rooms have original fireplaces with simple wooden surrounds and basket grates. The attic room has a single exposed king-post truss with pegged clasped purlins.

No. 16 may be slightly earlier in date than Nos. 12 and 14. The houses have remained largely unaltered since their construction.