Carn House, Charlestown Road, Carn, Portadown, Craigavon, County Armagh, BT63 5PP

Carn House is a two-storey farmhouse set within a spacious garden on the east side of Charlestown Road, roughly two miles north of Portadown. The building comprises a formal late Georgian front block dating from approximately 1810–20, with a long low return extending to the east. Both sections are gabled.

The house has an L-shaped plan form. The front block, positioned at the west end, presents a typical three-opening-wide late Georgian composition to its front face. At ground floor centre is the main entrance, consisting of a plain timber sheeted door and segmental fanlight with Adamesque swag moulding to the lintel and 'spider's web' tracery to the fanlight. The door sits within a characteristically Regency coved semicircular-arched reveal with moulded edging. Flanking the doorway are flat-arched window openings with painted stone cills and cement rendered eared and heeled surrounds dating from the early 1900s; the windows themselves are replacement uPVC frames. Five further similar but shorter windows occupy the first floor. The north gable has a first-floor window (without surround) to the left, a tiny fixed two-pane timber-framed window at attic level to the left, and an attic window with a single-pane frame to the right. The south gable contains a ground-floor window to the right, a similar but shorter first-floor window in line with it, and a much smaller single-pane window at attic level.

The return abuts the right-hand side of the rear face of the front block. A two-storey lean-to projection is attached to the centre and north side of this rear face. To its east face is a ground-floor doorway with a half-glazed timber door and a small upper-floor window with a 2/2 timber sash frame. The north face of the lean-to contains ground and first-floor windows with timber sash frames in Georgian panes (3/6 and 3/3 respectively). To the right of the ground floor on the north face of the front block itself is a window matching that on the south gable.

The return displays an informal arrangement of openings. On the south face, two identical ground-floor windows with 6/6 timber sash frames flank a large lean-to open porch; two smaller first-floor windows with 3/3 sash frames sit above. The porch has a large front opening, a large window to its immediate left (modern timber frame), and a larger frameless opening to the right, with a smaller three-pane window on its west face. Within the porch interior are two doorways with timber sheeted and half-glazed doors respectively, separated by two windows with Georgian-paned 3/6 sash frames. First-floor windows above the porch projection (with 3/3 sash frames) are positioned directly above. The north face of the return contains three unevenly spaced windows on each floor, with first-floor windows much smaller; all have Georgian-paned sash frames (3/6 to ground floor, 3/3 to first floor).

At the east end of the return is a single-storey brick-built gabled outbuilding of the later 19th century. Its south face has three window openings (now largely boarded up) with a doorway containing a timber sheeted door between the first and second windows. The north face has three more windows: the left is smaller with a 3/6 Georgian-paned timber sash frame, the centre retains the dilapidated remains of an Edwardian-style timber casement frame with three fixed panes above, and the right is boarded up. The west-facing gable has a very small four-pane timber window set at low level.

The front face of the main block is finished in pebbledash with cement rendered in-out quoins, base course, eaves course and window surrounds. Other facades of the block are lined cement render with similar quoins. The south face of the return is lined cement render, though the porch projection combines cement render, roughcast and painted brick. The north face of the return and the two-storey lean-to projection are finished in roughcast, with the attached outbuilding in painted brick. All roof sections are slated, with rendered chimneystacks to the gables of the front block and a tall rendered stack roughly west of centre on the return ridge. Rainwater goods are largely uPVC.

The front garden is enclosed by a low roughcast rendered wall with hedge above, containing a small pedestrian gateway with pebbledashed piers. To the south of the house are several large outbuildings with curved roofs, which appear to be Belfast Truss roofs, though this was not confirmed. A larger freestanding outbuilding of similar date and construction stands to the south of the brick-built gabled outbuilding, with additional outbuildings further to the south of various dates.