A bawn, the fortified enclosure surrounding a castle, is not the kind of space most people expect to find a suburban-looking residence, yet here one stands, its rendered walls and hipped slate roof making it look less like a feature of a medieval complex and more like a comfortable mid-Victorian townhouse that has somehow landed inside a fortress.

The building takes an L-plan shape, with six bays on the ground floor and five on the first, the easternmost bay stepping forward from the main facade with its own pitched roof and rendered chimney stack. The windows are square-headed tripartite timber casements, and a lawned garden occupies the space to the front, all of which points to a date of around 1845. That period is significant for Cahir, because it coincides with a wider campaign of urban improvement in the town attributed to William Tinsley, an architect who had considerable influence over Cahir's appearance in the mid-nineteenth century. Whether Tinsley was directly responsible for this house is not confirmed, but the association is considered plausible, and the building's careful composition sits comfortably alongside his documented work in the area.

The house is built directly onto the interior of the castle's bawn walls, which means the ancient stonework of the outer ward effectively serves as two of its external boundaries. For anyone paying attention, the contrast between the medieval fabric beneath and the Victorian domesticity above it is quietly arresting, a layering of very different ideas about what a building is for, compressed into a single corner of a working castle complex.