The rectangular tower, measuring roughly 11 metres east to west and 8.5 metres north to south, retains its southern ground floor wall and eastern wall up to the first floor. A particularly striking feature is the central window embrasure in the south wall, with its narrow vertical slit splayed both inside and out; a similar opening survives at first-floor level in the eastern wall. The southeast corner houses the shell of a spiral stone staircase, its lower steps still intact though the upper portions have been reduced to stumps, with two narrow slits in the eastern wall providing light to the stairwell.

Against the tower’s southern wall, the remains of an annexe can still be traced, its eastern wall running for 7.25 metres in line with the tower’s eastern face, with a short 2.1-metre return of its southern wall still visible. This square structure, shown on the 1842 Ordnance Survey map as roughly half the tower’s area, contains the ruins of fireplaces at both ground and first-floor levels, their flues rising to feed a rectangular chimney stack in what remains of the gable. Curiously, staddle stones have been built into the external eastern face of this wall. To the north of the tower’s northeast corner, a wall connects to a small two-storey gabled building featuring 17th-century style gun loops in splayed embrasures; however, this structure doesn’t appear on the 1842 map and is otherwise 19th century in appearance.

The tower’s history took an intriguing turn in the 1660s when it passed from the Powers to the Penn family, becoming an occasional residence of William Penn, the Quaker founder of Pennsylvania. Penn’s descendants retained the property well into the 20th century, leaving their mark on the landscape with what appears to be an 18th-century stone wall enclosing the area to the south. Today, a vacant 19th-century house stands to the west of the tower, completing this complex of structures that span several centuries of Irish history.