2021:644 - DUBLIN: The Mercantile Hotel, Dame Street, Dublin

The development area has been occupied by existing buildings since the end of the 18th century and a basement level occupies the entire footprint of the hotel. Ground works monitored included the excavation of forty-five pile caps. Monitoring of the excavation of these pile caps revealed a uniform stratigraphy across the site comprising of a concrete slab overlying modern demolition rubble over natural boulder clay.

There was one feature of archaeological significance, a red-brick cistern of likely late 17th- or 18th-century date, noted underneath one of the basement concrete slabs. This feature was covered in plastic and retained in situ.