The original structure, measuring 11.5 by 9 metres, had been reduced in height and converted into a thatched two-storey dwelling by 1990, though it was already much ruined by then. Today, nothing remains of the castle; it has since been demolished and replaced by a farm shed. The Down Survey maps from the 1650s depict the tower house with a two-storey house attached to one side, which may be the origins of Ballyvorneen House itself.

The Civil Survey provides a fascinating glimpse into the property’s 17th-century heyday, describing Connor Clancy of Ballybricken, an Irish Catholic, as the owner of Ballyvorneen lands, which contained “a large Castle, bawn and orchard”. Historian Westropp noted that between 1651 and 1654, the castle served as a garrison, with records showing payment for hay for the garrison’s horses. By 1655, it was described as “a very fair Castle, in good repair” with a strong tower and large gabled wing attached. The property later passed to J. Maunsell in 1667 following the Act of Settlement.

The current Ballyvorneen House, built around 1700 on the site of the medieval castle, stands as a testament to centuries of continuous occupation and adaptation. The Ordnance Survey Name Books describe it as a two-storey house that was “rebuilt some time ago on the site of an old castle, the seat of Clancey, one of the chieftains of old”. By the time of the survey, it belonged to the Gabbetts and was occupied by a tenant. The National Inventory of Architectural Heritage notes the house features a pitched slate roof with chimneystacks, rendered walls, and square-headed window openings, alongside multiple single-storey outbuildings with various architectural features including loop openings and segmental arches.