Late medieval features including walls potentially relating to the Sun Inn, rubble filled features, and a well, were excavated at Canterbury Cathedral Welcome Centre in 2016.
One of the medieval walls was aligned NW-SE and was constructed of "flint nodules, large ragstone fragments and large pieces of chalk, bonded with light brown crumbly lime mortar containing chalk flecks. It stood to a height of 1.03m." (from the original report, 1). The other wall ran along the same alignment was was constructed of chalk, ragstone, and Caen stone with a yellow-brown lime mortar. The wall was visible to a height of three courses (0.29m).
The medieval walls were thought to date from the 15th or 16th century and may have been associated with the 15th century Sun Inn or another structure attached to its northern side. One of the walls may have accomodated a hearth or fireplace in its side (represented by in situ coursed tile); however, the other wall dating from the medieval period apears to abut and potentially block this feature - suggesting that the fireplace may have been modified.
The rubble filled features may have been associated with demolition of existing structures at the site. The features were 0.23 and 0.55m deep, respectively. The fills included brick and tile rubble, chalk, flint, peg tile, animal bone, and oyster and whelk shell.
The well was constructed of broken unfrogged red bricks as well as re-used stone blocks and contained a fill of mortar, chalk, brick, and peg tile. The well is thought to have been associated with the yard to the rear of the medieval inn.
Later post-medieval structures were also excavated at the site (TR 15 NE 1975). (1)