During excavation work and clearing for roadworks in May 1970, an almost complete medieval tile kiln was uncovered at Addington. It was set in an open field on a south facing slope about 1 mile west of St Margaret's Church TQ 65 NE 12 The kiln consisted of double chambers, tile built walls and arched flues. This was the typical construction of Kentish medieval kilns. No other structure was found in the immediate area although the area to the north had already been removed by machines. A light scattering of tiles spread at least 80ft [24m] to the south, 50ft [15m] to the east, 30ft [9m] to the west and a minimum of 10ft [3m] to the north. About 36ft [11m] to the south of the site, machines uncovered mixed deposits of brown loam, sandstone rubble, roof tile and carbon to at least 2ft deep [.61m]. This may have been the fill of a clay pit connected to the kiln. Pot sherds associated with the area were dated to the 13th and 14th centuries.