A bawn is the defensive enclosure wall that typically surrounds an Irish tower house, and here the building's western wall is not a separate construction at all but simply the bawn wall itself, raised on a natural rock outcrop. That kind of pragmatic recycling, folding a domestic or working structure into an existing fortification, tells you a great deal about how these sites evolved over time.

Moorstown tower house stands immediately to the north, and the building in question dates broadly to the late seventeenth or eighteenth century, with further alterations added later still. It is built from limestone rubble with roughly cut quoins at the corners and a coarse pebble dash render over the surface. The window and door openings are framed in brick, though one first-floor window at the northern end retains a cut limestone jamb with an internal chamfer and punch-dressed margins, a detail that suggests an earlier or more carefully finished phase of work. The northern room preserves chamfered limestone spud-stones, the low projecting blocks set at floor level to protect a door frame from cart wheels or livestock, pointing toward a stable use. A partition wall between this room and the one to its south rises only to first-floor level, which may indicate an open hayloft arrangement above. The northern wall of that same room projects inward to carry the external stair leading up to the tower house entrance, binding the two structures physically together. The southern room contains the most domestic detail: a large fireplace projects from the southern wall, and beside it sits a well-preserved brick oven, with one opening into the fireplace and a second, now blocked, opening directly into the room. This is consistent with a bakehouse, where bread would be loaded through the room-facing opening and the oven heated from the adjacent fire.

What makes the building quietly absorbing is its layered ambiguity. The eastern wall of the northern room shows evidence of at least three distinct phases of construction, and the mix of uses across the four rooms, stabling, baking, possible accommodation, suggests a working complex that adapted as the needs of the household shifted across generations. Nothing here was built to impress; it was built to function, and the fabric of the walls still carries the record of that.