6 Lisburn Road, Glenavy, Crumlin, County Antrim, BT29 4NT

6 Lisburn Road is a three-bay single-storey flat-roofed house in the International modern style, built around 1965 to designs by Philip Bell and located north of Lisburn Road east of Glenavy town centre. The building was constructed for Mrs Rebecca McCullough of Glenavy.

The house is rectangular on plan with a projecting curved window bay to the front. It features a felted flat roof with rectangular rough-cast chimneystacks and aluminium ogee rainwater goods on projecting eaves. The walling is painted roughcast render.

The principal elevation faces west and comprises an open entrance porch with a replacement glazed timber door, with triple window openings to the left extending to the south side of the building, and a large window further to the left. The north elevation has a small window to the right. The east elevation comprises a projecting curved window bay to the left, fully glazed over a plinth wall, with three rectangular-shaped windows to the right. The south elevation has two corner windows to the left and right. A corner window is also positioned to the southwest. The windows are replacement plastic frames with projecting masonry sills.

The left side of the building is enclosed by a walled yard with a modern timber gate. The house has a gravelled entrance to the west and a mature garden to the south and east, enclosed by a roughcast rendered wall with saddleback coping stones and gate piers, with a timber fence to the west. The house is partially concealed from the main road to the east by mature trees.

Philip Bell (1908–1982) was the first local architect in Ulster to possess a degree in Architecture and Planning, gained in England. He became known as a pioneer of the modern movement in Ulster and was a founding member of the Historic Buildings Council, the Ulster Architectural Heritage Society, and the Ancient Monuments Council.

The building does not appear on Ordnance Survey maps (1832–1921) or in Valuation books for the region. The original window frames were replaced with plastic frames in or before 1991, which did not conform to the original glazing pattern. The building was listed in November 1992. Despite these alterations, the house retains its essential character typified by the flat roof, semi-circular projection, and corner windows, making it a rare example of a building type designed by one of Northern Ireland's most important architects.