The current house, built in the 1950s after the demolition of an earlier Prospect House, may occupy the very ground where a sixteenth-century castle once commanded the landscape. This tantalising possibility comes from documentary evidence cited in O’Hanlon and O’Leary’s 1907 History of the Queen’s County, which mentions an unlocated castle somewhere within Loughteeog during the 1500s.

The original Prospect House appears on the first edition Ordnance Survey six-inch map as a narrow rectangular building running east to west. When this structure was knocked down in the 1950s to make way for the current building, any physical evidence of an earlier castle would likely have been disturbed or destroyed. The present occupant of Prospect House maintains the local belief that their home stands on castle foundations, though no visible remains survive above ground to confirm this intriguing piece of folklore.

Whether the castle connection proves true or not, the site represents a fascinating example of how Irish landscapes hold layers of history, with each generation building upon or replacing what came before. The documentary evidence from the sixteenth century, combined with persistent local memory, suggests that Loughteeog once held a defensive structure of some importance; its exact location, however, remains one of those historical mysteries that may never be definitively solved.