4 Fitzwilliam Street, Belfast, Co. Antrim, BT9 6AW

Four matching late Georgian style terrace houses built around 1849, located at the eastern end of the south side of Fitzwilliam Street in Belfast. The terrace of four properties sits between Queen's University Belfast Student's Union to the south and University Road to the west, where Lanyon's original college building stands.

The front façade of number 4 faces north. At ground floor level, a four-panel timber door with rectangular fanlight containing margin panes occupies the left side. The doorway is flanked by a thin pilaster jamb to the right and a much thicker pilaster to the left, which acts as a pier between this property and number 2. Above the doorway is a hood supported on simple, functional-looking metal brackets, which merges with the hood of number 2's doorway and is finished with timber cladding and a simple cornice. Two steps lead to the door. To the right of the doorway are two sash windows with Georgian panes (six over six) and moulded surrounds. The first floor contains two similar windows without surrounds, positioned more widely spaced and not aligned with the ground floor windows. The entire first floor windows of the terrace rest on a cill band. The second floor has two windows similar to those on the first floor but slightly shorter and in line with them. The ground floor is rendered in rusticated finish with a chamfered base and cill band to the first floor windows, painted over. The remainder of the front façade is brick, topped with a dentilled cornice.

The rear façade of the entire terrace is finished in plain, unpainted cement render. Numbers 2 and 4 share a low, two-storey gabled return, as do numbers 6 and 8. The west face of number 4's return has a plain sheeted doorway to the centre of the ground floor, flanked by two small windows to the right and one to the left, all with modern timber frames and security bars. On the first floor far left is a small plain sash window, also with security bars. The south-facing gable end of the return has a single canted first floor oriel window to the left, belonging to number 4, constructed in timber with plain sash windows and security bars to each cant. The oriel has a lead-sheeted flat roof supported on metal brackets. The main rear façade of number 4 contains a sash window to the left at each floor, all aligned vertically, with the second floor window slightly shorter. Ground and first floor windows have security bars. To the right of these windows and above the return are two stairwell landing windows, the upper one much shorter and positioned close to the eaves. All rear windows have sash frames with Georgian panes, predominantly six over six, except the small upper stairwell window which has three panes over three, and the upper sash of the second floor window which is plain.

The roof of the terrace is gabled and finished in Bangor blue slate with rendered parapets to each gable. Each property has a small Velux window on the rear slope. Chimney stacks run the length of the terrace: the eastern stack (belonging to number 2) is rendered with tall, uniform cream-coloured clay pots; the broader central stack (numbers 4 to 6) is partly rendered with a variety of pots; the western stack (number 8) is in brick with no pots. The roof of the return comprises two gabled roofs with a valley between them, concealed behind an encompassing end gable, both covered in Welsh slate. A brick-built stack at the end gable carries two 19th century-style octagonal pots. The return roof also has a Velux window on its inner side. Cast iron rainwater goods are fitted to the main building, with mainly PVC rainwater goods to the return.