Historical records from 1546 describe it as a tower, placing it amongst the many such structures that dotted medieval Dublin’s landscape. The tower stood remarkably close to the Manse of the Archdeacon of Dublin, suggesting this area held considerable ecclesiastical importance during the medieval period.

The proximity of Castleragge to the archdeacon’s residence offers a glimpse into the urban layout of 16th century Dublin, where religious and defensive structures often stood side by side. These towers served multiple purposes; they were residences, symbols of power, and practical fortifications in an era when urban conflict was not uncommon. The documentary evidence, preserved in various historical sources including Mason’s 1819 work and Bradley & King’s 1987 compilation, helps piece together the story of this lost structure.

Today, nothing remains visible of Castleragge at street level, its stones likely incorporated into later buildings or cleared away as Dublin expanded and modernised. The site appears on the 1978 FMD map as reference M8, marking where this piece of Dublin’s medieval heritage once stood. Like many of the city’s ancient structures, Castleragge exists now only in historical records, a reminder that beneath modern Dublin’s streets lies centuries of accumulated history, much of it visible only through careful archaeological and documentary research.