A rath, or ringfort, is an enclosed farmstead of the early medieval period, typically built between roughly 500 and 1000 AD, and constructed from earth rather than stone. This one is modest in scale, roughly 23 metres north to south and 22.6 metres east to west, its circular boundary made up of an earthen bank that still rises to around 0.7 metres in places, with a fosse, or defensive ditch, running outside it.

What makes the Condonstown example slightly more interesting than many comparable sites is the suggestion of a second, outer bank, traces of which survive to around 0.4 metres in height. A ringfort with two concentric banks and ditches, sometimes called a bivallate rath, was generally associated with higher social status than a single-banked enclosure; the double barrier implied both greater resources and a greater need, or desire, to project them. Writing in 1918, a researcher named Power recorded "one lios" in the townland, noting it as "double-ramparted", a lios being the Irish term for such an enclosure. That early observation aligns with what can still be read on the ground today. There is a gap in the western bank that may represent an original entrance, and the interior slopes gently downward to the west, with a raised platform surviving to the east.

The earthwork now sits among tillage, its bank overgrown, its fosse considerably reduced from whatever depth it once held. These are common conditions for ringforts in cultivated ground; centuries of ploughing gradually erode the outer features, and vegetation does the rest. The raised platform to the east of the interior is worth noting, as such features within ringforts are sometimes interpreted as the footprint of a structure, though nothing in the available record confirms that reading here.