During excavations in 1996, archaeologists uncovered a series of walls built from large blocks of ancient limestone, mortared together in a manner consistent with medieval construction. Alongside these walls came fragments of local medieval pottery, the kind of everyday ceramic evidence that tends to tell a more grounded story than grand monuments ever do. The discovery suggested that the ground beneath the hall had been built upon, and built upon again, across several centuries before the current structure ever took shape.

According to the excavation report compiled by Kehoe in 1997, the finds pointed clearly to medieval activity on the site. Tailor's Hall itself is the last surviving guildhall in Dublin, a building with a documented history stretching back to the early eighteenth century, when it served as a meeting place for the Guild of Tailors. Guilds were formal trade associations that regulated crafts and commerce in medieval and early modern towns, and their halls often occupied sites with long prior use. The limestone walls uncovered in 1996 predate the standing structure and hint at an earlier phase of occupation, though the precise nature of that earlier use remains uncertain from the available evidence.

The hall is located on Back Lane, just off High Street in the south city, and is today managed by An Óige, the Irish Youth Hostel Association. Access to the building is therefore possible for those staying there, though the medieval fabric uncovered during excavation is not on display in any formal sense. The building's main hall, with its early eighteenth-century interior, is the most visible layer of history, but knowing what lies beneath adds a different quality to a visit. The surrounding streetscape retains some sense of the old Liberties neighbourhood, and the proximity to the nearby Christ Church Cathedral means the area rewards a slow, attentive walk rather than a hurried glance.