A road sign on the building reads; "King Street (formerly Kergate)", as a tribute to the original medieval name of First Water Lane.
The south and west walls are particularly thick, to provide some protection against flooding, and constructed of brick and stone, some of which is reused from Mediaeval buildings.
The building originally had no fireplaces or internal walls, and so is believed to have been constructed as a warehouse or custom house from trade coming up the river.
Once the flood waters reach the back door, the pub is closed, and all the fixtures and fittings can be dismantled and stored upstairs.
A chart on the wall marks historic flood heights, the highest being 2000, when floodwater nearly reached the ceiling of the bar.