Tide mills, which used the rise and fall of tidal water to turn their grinding wheels, were a relatively common feature of medieval and early modern Ireland's coastline, but most have vanished so completely that even their locations are uncertain. This one falls into that category. It leaves no trace at ground level.

The site was identified by O'Flanagan in 1976, who recorded it in the placename evidence alone. The name Mill Bank, attached to this stretch of the estuary, is the kind of toponym that preserves memory long after physical remains have gone. Tide mills typically worked by trapping water at high tide behind a dam or sluice, then releasing it in a controlled flow as the tide dropped, driving a wheel in the process. The Malahide estuary, with its pronounced tidal range and sheltered inlet, would have been a reasonable location for such a structure, though nothing in the available record establishes precisely when this mill was built or who operated it.

For anyone visiting the area, the honest expectation is that there is nothing to see. The mill's interest is almost entirely archaeological and conceptual, the knowledge that a working industrial structure once occupied this ground, detectable now only through a name on a map. The estuary itself is accessible and worth exploring for its own qualities, and someone with an interest in historical landscape reading might find it worthwhile to locate Mill Bank and consider the tidal patterns that once made the site practical. Low tide, when the estuary flats are exposed, gives the clearest sense of the hydrology the mill would have depended upon.