Whilst the Codd family held lands here from as early as 1351, the castle itself only appears in records from 1564, when Nicholas Codd of Carne owned the property. By the time of the Civil Survey in 1655-6, Nicholas Codd, noted as a Protestant landowner, held a modest 80 acres across Rathaspick and Ballykelly townlands; a relatively small holding for a family with such a long-established presence in the area.

The property changed hands in 1680 when Thomas Richards of Park married June Codd, bringing Rathaspick into the Richards family. Over time, the medieval castle was absorbed into what became an Georgian mansion, its original stonework hidden beneath later additions and renovations. The true nature of the building’s ancient core only came to light in 1987, when workmen stripping render from the central portion of the southeast front discovered small medieval window openings, or ‘lights’, embedded in the fabric of the wall.

Today, Rathaspick House stands as a palimpsest of Irish history; its elegant 18th-century exterior masking the bones of a 16th-century fortification. These hidden architectural elements serve as tangible links to the Codds, one of Wexford’s old landed families, and to an era when such castellated houses dotted the Irish countryside, serving both as family homes and defensive structures in uncertain times.