Erin Lodge, Rosepark Avenue, [off Killaughey Road], Donaghadee, Co Down

Erin Lodge is located approximately 1 kilometre south-west of Donaghadee town centre. It is a large, single-storey Regency villa built in 1824, set on a high basement and now roughly 'U' shaped in plan. The building is relatively plain in architectural character. It stands within approximately one acre of grounds, all that remains of a much larger demesne. Most of the original land was sold in the 1970s for a modern private housing development which now surrounds the remaining grounds.

The south facade features the main entrance door positioned right of centre, accessed by a flight of six stone steps. The door is a wide four-panel timber door surmounted by an elliptical radial fanlight with glazed and panelled margins. To the right of the door is a tall sliding sash window with cill level at floor level, furnished with horizontal and vertical astragals. To the left is a similar window with a raised sill. Further left is a later return which has a window to its right and a centred door to the basement garage. The west side of this return is gabled, with a basement sliding sash window below a loft door at raised ground level.

The north face of the return features a large coach arch, now blocked, but retaining a small pass door and an irregularly shaped window. To the immediate left of the return is a screen yard wall behind which are three small windows resting on a shared sill. Below and to the right is a modern door in 1930s style, recessed. A second, much smaller gabled return projects from the left side of the west facade. Its south face has one small sliding sash window at ground level and one at basement level. This face also displays an elaborate but inoperable water pump. The west facade of this return has two symmetrically placed sliding sash windows. To the left is a large and somewhat dilapidated glass house.

The north facade divides into two halves: the right side forms the return, and the left the main house. The north side of the return has a modern recessed ground floor door reached by a short flight of steps, with a sliding sash window to its right. The main house side features three ground floor sliding sash windows: the rightmost is small, the centre is large with its cill resting on the string course, and the leftmost is medium sized. The basement has two small sliding sash windows.

The east facade features a canted bay on the left-hand side with large windows to the ground floor and small ones to the basement. To the right are two similar windows, one at ground and one at basement level. Further right is a shallow projecting bay with a split pediment above, containing one window to ground and one to basement level. All windows throughout are sliding sash.

Generally the ground floor rests on a projecting stone string course. At the front, ground level rises to meet floor level; to the north, ground is steeply banked down to basement floor level; to the west, ground level is almost level with basement floor level. The eaves overhang approximately 0.4 metres. All roofs are covered with Bangor blue slates and are generally hipped, with very shallow pitch and a flat centre section. Large carved Scrabo stone chimney pots crown the roofs.

The building was originally picturesquely set within its own extensive wooded park. A previous owner disposed of much of this land, and a modern estate now surrounds what remains of Erin Lodge's grounds.