Colinmore, Hunterhouse College, Upper Lisburn Road, Finaghy, Belfast, County Antrim, BT10 0LE

Colinmore is a two-storey Italianate mansion in ashlar sandstone dating from around 1870, now part of Hunterhouse College. It stands within the college grounds fronting onto Upper Lisburn Road in Finaghy, Belfast.

The building follows a rectangular plan form with a three-storey tower to the west and a single-storey modern extension to the east end. The roof is hipped with Bangor blue slates and rolled lead ridges. Ashlar sandstone chimney stacks with corbelled coping stones and red clay chimney pots rise from the roof. The eaves are overhanging and supported on horizontal moulded brackets with cast iron ogee gutters discharging to circular downpipes.

The walls are constructed in Dungannon and Giffnock sandstone, with the north-east part rendered. The ground floor features rusticated ashlar walling on a projecting plinth course, with a continuous projecting string course at sill level to all floors. Window openings are square-headed to the ground floor and segmental-headed to the first floor, all fitted with double-hung 1/1 timber sashes except where otherwise stated. First floor windows are flanked by pilasters supporting decorated archivolts.

The principal elevation faces north. The western section is built in ashlar sandstone while the eastern section is rendered. The off-centre entrance is through a projecting single-storey porch with a segmental arched opening at ground floor level and an openwork parapet above. Double-leaf panelled timber doors open onto a granite platform and two nosed steps sheltered by a projecting Art-Nouveau style segmental arched canopy with a copper-covered roof and coffered ceiling. A three-storey hipped-roof tower stands directly to the west, featuring two small square-headed windows to the ground and second floors, and a segmental-arched timber three-part mullioned window to the first floor. The western bay has one window to each floor. A projecting bow-fronted full-height bay lies to the east of the entrance, with a five-part Tudor-style window with stone mullions and stained leaded glazing to the ground floor and three segmental-headed windows to the first floor. Three further bays to the east each contain a window at ground and first floor levels. A projecting multi-bay wing to the far east has square-headed windows with sandstone sills to the ground floor, plain segmental-headed windows to the first floor, projecting cornicing, and two slightly recessed square-headed dormer windows with timber casements.

The west elevation comprises three bays. A two-storey three-sided canted bay to the north has square-headed windows to all three sides at ground floor level, with the central bay window flanked by recessed pilasters, and segmental-headed windows (paired to centre) to the first floor. A two-bay-wide single-storey rectangular projection to the south has pilasters separating three windows and an openwork parapet above, with a segmental-arched window to each bay at first floor level.

The south elevation (rear) begins with a single-storey semi-circular bay window to the west end, featuring an openwork parapet above and paired windows to the first floor. A flat-roofed canopy supported on painted timber posts spans the next three bays to the east. To the east is a projecting bay with a shallow portico at ground floor level, supported on two circular columns with ionic-style capitals and decorated bases. A square-headed door opening with modern timber panelled door and fanlight opens onto a single stone step, with a single window to the first floor above. A single-storey flat-roofed semi-circular bay window occupies the next bay to the east, featuring a mullioned timber frame with leaded coloured glazing and four windows to the first floor. The east side elevation of this bay consists of a four-part square-headed timber mullioned window with leaded glazing at ground floor and a single window to the first floor. The next two bays to the east are recessed with a lean-to single-storey porch and two simple segmental-headed windows to the rendered first floor. The porch has a square-headed modern double door with glazed timber frame screening. A three-sided canted bay to the east end contains two windows to the canted bays at ground floor level and four segmental-headed windows to the first floor.

The east elevation is four bays wide with a projecting modern extension. The single-storey rendered modern extension has a slate hipped roof and a square-headed door opening onto a concrete ramped platform to the east. A hipped dormer built off the wall with an attached chimney stack breaks the elevation at eaves level, separating the plainly detailed north section from the bracketed overhanging eaves to the south.

The building is surrounded by modern school buildings within the Hunterhouse College grounds. The main entrance to the grounds is accessed through a gateway fronting onto Upper Lisburn Road.