South Gate Lodge, Ballynagard House, Culmore Road, Londonderry, BT48 8JH

This is a late Georgian gate lodge situated on the Culmore Road, Londonderry, accompanied by matching Georgian-style gates, piers, and screen walls. The lodge's design, together with the gates and walling, contributes to its group value.

The lodge itself is a single-storey stone building, three bays wide, with brick detailing, hipped slated roofs, and a central chimney topped with a segmental stone porch. The principal, south-facing elevation features a stone porch, trimmed with brick which is now painted black and cream. Boarded-up windows, also with brick trim, flank the porch. Centrally placed windows are set within each gable; there are no windows to the rear. A half-round PVC gutter runs along the eaves of the natural slated roof, which has blue/black ridge and hip tiles. The stone is random rubble schist, constructed using large binder stones at the corners, which echo the style of a rear return of the main house.

The entrance gates consist of decorative wrought iron double gates hung from square sandstone ashlar piers with pyramidal copings. Straight wing walls, built of rubble schist stonework with band stone coping, extend from the piers. These walls are pierced with square-headed lateral pedestrian openings, each containing single wrought iron decorative gates and brick trim. Curved random rubble schist walls swing out from the straight walls to the back of the footwalk along Culmore Road.

Based on references in Griffiths Valuation of 1858, the lodges pre-date the mid-19th century. It is suggested this lodge was constructed circa 1850 and approximately twenty years after similar north lodge. The architect Fitzgibbon Louch, who also worked on the main house, may have influenced the lodge's design.