No stone, no outline, no commemorative plaque. The site of St. Martin's Chapel exists today only in historical cartography and archival records, an absence that is itself a kind of presence for anyone who knows to look for it.

The chapel's end came in 1311, during a great fire that swept through Dublin city, a disaster recorded by the nineteenth-century antiquarian John T. Gilbert in his account of the city's history. The fire apparently consumed St. Martin's along with whatever else lay in its path. The precise origins of the chapel, its dedication to St. Martin of Tours, and the community it served remain obscure beyond what the cartographic record suggests. Its location was mapped by H. B. Clarke in 1978, appearing on the Framework for Medieval Dublin map at grid reference G6, situating it clearly to the east of St. Werburgh's, the Church of Ireland building that still stands on Werburgh Street today. Clarke revisited this identification in a 2002 publication, confirming the association. That St. Martin's appears on a reconstruction map of medieval Dublin at all is a minor scholarly achievement; many buildings consumed by fire or time simply vanish from the record entirely.

St. Werburgh's Church itself is accessible and worth a visit in its own right, but there is nothing at the St. Martin's site to reward a detour made solely on that basis. The value here is more conceptual than physical. For those with an interest in medieval Dublin's ecclesiastical geography, standing roughly to the east of St. Werburgh's and knowing a chapel once burned here in 1311 is a quietly particular way of reading the city's layered past. The area today is urban and well-trafficked, and any archaeological trace that might once have existed beneath the surface has long since been built over. The site is worth knowing about, even if it offers nothing to stand in front of.