The Warren Map of 1740 showed the area to be fields – so this is the first evidence of previous development.
Alongside the clay ovens, the archaeologists have found a series of sunken barrels.
Outline of a clay oven used for malting barley for the brewing industry
They think these were to store lime putty which was used to create mortar, plaster and lime-wash for building.
Mr Tester said: “It’s very exciting. Hopefully we’ll be able to find more of these barrel wells and find out definitively what they were used for.”
Story: BBC News | Photo: BBC News