The castle belonged to Alderman James Stritch, a prominent figure in Limerick society, and by 1657 it had been transformed from a private residence into a military stronghold. Historical records from that year describe it as "the stone Castle or house of Alderman James Stritch, and a cross stone-house, now made into a cythadell or garrison" within St Munchin's Parish, highlighting its strategic importance during the Cromwellian period.

The castle's location would later become the site of the bishop's palace, marking a significant transition from military to ecclesiastical use. Various historical sources, including the Civil Survey of 1654 and Thomas Dineley's manuscript from 1681, document the castle's existence and importance to the urban landscape of medieval and early modern Limerick. These records, carefully preserved and studied by historians like Westropp and O'Flaherty, provide valuable insights into how the city's architecture evolved through periods of conflict and peace.

Today, whilst the original structure no longer stands, the site remains an important piece of Limerick's archaeological heritage. The Urban Survey of Limerick, compiled by Bradley and colleagues in 1989, continues to reference this location as a key historical site, ensuring that the memory of Stritch's Castle and its role in shaping the city's identity is preserved for future generations. The transformation from private residence to military garrison, and eventually to religious grounds, tells a broader story of how Irish urban centres adapted to changing political and social circumstances throughout the centuries.