Flatfield Hall, 70 Sugar Island Road, Moyraverty, Craigavon, Co Armagh, BT66 8RT

Flatfield Hall is a large, plain two-storey gabled farmhouse built in 1853, located on the west side of Sugar Island Road near what was originally a crossroads, less than a mile south of Craigavon. The main structure comprises a large two-storey gabled block with a small single-storey return extending to the rear, which links to a two-storey outbuilding. Further two and single-storey outbuildings are arranged around a large farmyard to the west. The entire property is approached through a large garden on the east side, bounded by a rendered wall with a pedestrian gate and carriage entrance to the south.

The main block's exterior is covered entirely in dry dash render with painted stone quoins. A projecting painted stone base course runs across the front, while cement render base courses are applied to the other faces, with the north gable base recessed. Eaves courses finish the front and rear elevations. The roof is covered in what appears to be artificial slate to the front of the main block, with natural slate to the rear and to the return. Rendered parapets are present. Three dry dash rendered chimneystacks rise from the structure: two on the gables and one on the ridge to the south of centre. Rainwater goods appear to be largely aluminium.

The east front elevation of the main block is asymmetrical. To the left of centre on the ground floor is the main entrance, a panelled timber door with a rectangular fanlight above containing margin panes and coloured glass. To the left of the entrance is a flat-arched window with a timber sash frame of 4/4 panes and painted stone cill. Two further identical windows occupy the ground floor to the right of the doorway. The first floor above contains four more identical windows aligned with those below. Near the eaves, between the second and third first-floor windows, is a date stone inscribed '1853'. The south gable has no openings. The north gable contains a single, smaller window to the right on the first floor, featuring a timber sash frame with margin panes and coloured glass.

The single-storey return abuts the left side of the rear face of the main block. To its right on the ground floor is a large window with a Georgian-paned timber sash frame (10/10 panes), followed by a slightly narrower window with a 6/6 timber sash frame. The first floor of the return contains three unevenly-spaced windows, two of which align roughly with the ground floor openings. Set at half-landing level between the second and third windows is a large stairwell window with a timber sash frame featuring the alternating narrow and broad panes typical of early to mid-Victorian joinery, semicircular heads to the uppermost panes, and coloured patterned glass. The south face of the return has a large flat-arch shed doorway to the left, a house doorway with a timber sheeted door, and a small four-pane timber window to the right. To the far left, the return abuts an external stair belonging to the attached two-storey outbuilding.

The outbuildings are arranged around a large concrete-surfaced yard. The block on the southwest side is the largest, built of stone with brick dressings and a slated gabled roof. Its north face features a vehicle doorway and three pedestrian doorways, all with timber sheeted doors, along with square window openings, some partly boarded and some retaining timber frame remnants. Similar window openings appear on the first floor. The vehicle doorway appears to be an enlargement of an original smaller opening. Attached to the northwest end of this block is a large single-storey extension with rubble and concrete block walls and a gabled roof covered in corrugated asbestos. The extension's windows have mid-twentieth-century metal frames.

The outbuilding on the northwest side of the yard is single-storey with rubble walls, brick dressings, and a slated gabled roof, though it has been substantially altered in recent years. Large vehicle doorways and two pedestrian doorways have been blocked with concrete block and render, while new window openings have been inserted. A brick-built lean-to occupies the northeast gable, with a window featuring a 2/2 timber sash frame and a doorway with a timber sheeted door on its southeast face.

The outbuilding to the northeast of the yard is one-and-a-half storeys, with rubble walls and a gabled roof. Its southwest face features a large central elliptical-arched carriage entrance with a pedestrian doorway to the right, fitted with a timber sheeted door. Directly above on the upper floor is a partly boarded window. The northwest gable has a mid-twentieth-century extension of rubble and concrete block construction with a corrugated asbestos gabled roof. The southeast gable contains an upper-level doorway accessed via an external stair with stone and concrete steps.

A small single-storey outbuilding stands to the southeast of the yard, just southwest of the house, with a pedestrian doorway on its northwest face.

The pedestrian gateway at the front of the house has rendered piers with pyramidal caps and an early twentieth-century wrought iron gate. The carriage gateway features similar piers and gates flanked by quadrant walls.