Ballinderry House, 23 Lower Ballinderry Road, Lisburn, County Antrim, BT28 2JH

Ballinderry House is a detached, multi-bay, two-storey rendered house built around 1740. It stands on an elevated, mature site to the south of Lower Ballinderry Road, Lisburn, set back from the road behind an enclosed front garden and accessed by a winding gravel avenue to the west.

The house is rectangular on plan, facing north, with a front entrance porch, a single-storey accretion to the west gable, pair rear returns, and an extensive range of two-storey outbuildings forming a large enclosed yard to the rear. The pitched natural slate roof is finished with black clay ridge tiles and has four rendered chimneystacks with terracotta pots. Ogee-moulded cast-iron guttering on iron brackets and cast-iron downpipes with decorative hoppers complete the roofline.

The exterior walls are painted rendered with a render plinth course and rusticated render quoins. Square-headed window openings contain original timber sash windows with exposed sash boxes and historic glass, fitted with painted stone sills. The front elevation is six windows wide, with 6/6 timber sash windows to the ground floor and 6/3 to the first floor. The easternmost bay was built around 1930 and contains horizontally-glazed 2/2 windows. The entrance porch, also off-centre, is single-storey and gable-fronted with steel casement windows. Both ends of the front elevation are surmounted by masonry ball finials. A marble plaque attached to the front elevation commemorates: "John Wesley / Preached / From This House / 5th July 1771".

The west side of the entrance porch contains a square-headed door opening with an early twentieth-century flat-panelled timber door with decorative door furniture. The east gable, dating from around 1930, has steel casement windows to both floors and is abutted by a single-storey entrance porch with a square-headed door opening containing a flat-panelled and glazed timber door.

The rear elevation is rendered in rough-cast lime render with replacement plastic rainwater goods. It is abutted on the east by a single-storey return built around 1930, which connects to the east range of outbuildings. The west end of the rear is abutted by a two-storey redbrick return built around 1880, which has a lean-to rear entrance porch at the re-entrant angle. A tall rendered wall spans between both returns, forming a small enclosed yard with an outshot to the rear elevation covered in natural slate. The rear elevation contains timber sash windows matching the front elevation, with horizontally-glazed timber sash windows to the west return. The rear porch has a squat door opening to its east cheek, fitted with a plain timber door with brass door furniture and a metal canopy. The rear gable of the redbrick return is surmounted by a redbrick chimneystack with some rubblestone walling to the ground floor only.

The outbuildings are largely lime-washed rubblestone structures laid out on a U-plan, two-storey to the east and south, single-storey to the west. They have pitched natural slate roofs with apex vents, cast-iron rainwater goods, and original timber sheeted doors and shutters. The rear yard is concrete-paved with a central mature lime tree. The avenue opening into the rear yard is fitted with replacement salvaged cast-iron gates.

The front garden is enclosed to the road by a low rendered wall with iron railing and two sets of decorative wrought-iron gates.