The church once extended roughly thirty metres east to west and took the form of a double nave, a plan it shared with two other Wexford town churches, St Patrick's and St Selskar's. That configuration, two parallel aisles running the length of the building, was a reasonably common arrangement in later medieval Irish urban churches, where growing congregations or the interests of separate guilds or patrons could prompt the addition of a second nave alongside the original. Here, only the west gable of the northern aisle survives with any height, the rest having collapsed or been reduced to foundations over centuries of neglect.

The site sits within a D-shaped graveyard on a modest ridge of higher ground, its masonry boundary walls still defining the enclosure. Documentary references go back to 1365, making this one of the longer-attested ecclesiastical sites in the town. By 1615, when Thomas Ram, the Protestant bishop of Ferns, conducted a formal visitation, the church was still functional: a curate named William Roche was in post, and both the nave and chancel were recorded as being in repair. The antiquarian Francis Grose included a depiction of the building in his 1791 survey, by which point it was presumably already ruinous or approaching ruin, since Grose had a particular interest in picturesque decay. The northern wall, which had stood for centuries, finally gave way in January 2019. Conservation works followed, carried out by C. McLoughlin, though no archaeological features were uncovered during the intervention.

The outline of the full church can still be traced at ground level, which gives the ruin a quality that a lone standing wall on its own would not. Visitors who take a moment to walk the perimeter of the foundations get a clearer sense of the building's original scale than the surviving gable alone would suggest.