College Green House, College Green, Belfast, BT7 1LN

College Green House is a corner house at the end of the College Green terrace in Belfast, with elevations to both College Green and Botanic Avenue. Built in 1870, it is a three-storey building constructed of red brick on a stone plinth with cream sandstone trims, roughly cubical in shape with a hipped slate roof. It was part of a larger development that included nos. 2 and 4 College Green, with which it shares many architectural details. The original entrance was from Botanic Avenue, and that elevation remains fairly intact, though the College Green elevation was unsympathetically altered during flat conversion in the 1930s.

The Botanic Avenue elevation is asymmetrical with three storeys and three bays. It stands on a stone plinth with several stone bands and moulded string courses at first floor cill level and at the shoulders of the first and second floor windows. The ground floor has paired round-headed windows in the outer bays and a central doorcase, all with sandstone trims. The doorcase is set forward of the elevation with a shouldered gable carried on round columns with free Corinthian capitals. The gable features a central carved rosette and quatrefoils at the sides, with dogtooth ornament around the recessed door opening. Traces of painted lettering reading "COLLEGIATE SCHOOL" can be seen over two of the ground floor windows. The first floor has segmental-headed windows with stone heads paired under hood mouldings and chamfered opes at the sides and head. The second floor windows are aediculed dormers with gabled heads and rosettes, set forward of the wall on stone columns and breaking through the eaves. Double-hung sash windows are used throughout. Projecting eaves are set on ornamental corbels on a small moulded string course, and a cast iron ogee gutter survives in part of the eaves. A single-bay brick extension was built around 1930 against the left-hand end of the building and rises full height.

The College Green elevation is asymmetrical and three storeys, originally featuring similar details to the Botanic Avenue elevation, with a canted ground floor bay on the left and a central round-headed doorcase. The bay has stone mullions with palmate capitals and an ornamental corbel under the gutter, with a slate roof and lead ridges. Modern horizontal mullioned casement windows have been inserted at the first and second floors, with the original openings bricked up. String courses at first floor level and a cornice at the eaves match the neighbouring houses in College Green. The elevation would originally have had stone dormers.

The rear elevation is partly altered with a three-storey brick elevation, a small three-storey return on the Botanic Avenue corner, and a small single-storey return on the left-hand side, the latter replacing an original scullery return. The original windows are generally double-hung sash (plain or horizontally divided), though the central first floor staircase landing window has margined panes, and there is a later mullioned window above it. The roof is of Bangor blue slates, hipped, with what appears to be lead ridges and a central flat portion. A truncated brick chimney is visible on the College Green elevation, and two stone-corbelled brick chimneys on the Botanic Avenue elevation match a similar chimney at the junction with 2 College Green.

A dwarf brick wall with chamfered stone coping and bases for pillars at intervals exists around two sides of the building; the railings are now missing. At the rear are the coach house and stables that served this house and nos. 2 and 4 College Green.

The coach house is a tall single-storey red-brick building with a gable to Botanic Avenue, stone trim and kneelers to the gable, and a circular stone blind oculus in the gable with a wrought iron finial. Later sheeted double doors have been added. The sides to the mews lane and yard are of older brick. A double door has been inserted asymmetrically into the back gable facing the yard in place of a former WC and coal store. It has a slate roof and cast iron half-round gutters.

The harness room and stables form a two-storey building in old red brick, linked by a matching wall to the coach house. Windows are generally on the yard side, though one barred blocked-up window exists at ground level and a sheeted first floor hoist door exists on the mews side. Several ornamental cast iron vents are present at first floor level on the mews side.