There was no dramatic discovery, no visible earthwork to prompt curiosity; just the routine procedure of a pre-development investigation, and then, unexpectedly, the buried signature of a small industrial past.

When archaeologists examined the site in 2005, they uncovered evidence for metalworking in the form of bowl furnaces, shallow, roughly circular features dug into the ground that would have held charcoal and ore, generating the intense heat needed to smelt or work iron. Associated pits accompanied these furnaces, likely used in the process itself or for disposing of waste. A large quantity of ferric slag was also retrieved from the site, the glassy, heavy by-product left behind once iron has been separated from its ore. Slag is in many ways the most reliable marker of this kind of activity; it survives well in the ground, it does not decompose, and it accumulates in quantities that speak to sustained rather than occasional use. The findings were documented by Bolger in 2009, drawing on the excavation record. The site was compiled for the record by Geraldine Stout and updated by Christine Baker in October 2014.

Flemingtown is a townland in north County Dublin, and the site itself is not accessible as a visitor destination; it was investigated specifically in advance of development, which is the standard process under Irish planning regulations for areas with archaeological potential. What survives above ground is likely nothing at all, the excavation having concluded and the site subsequently built over. The value here is less in visiting than in knowing that the ordinary-looking landscape of suburban and peri-urban Dublin conceals layers of activity that rarely announce themselves. Bowl furnaces of this kind are found across medieval and early modern Ireland, and their presence at Flemingtown is a quiet reminder that iron-working was once a dispersed, local affair, carried out in small-scale operations scattered across the countryside rather than concentrated in large industrial centres.