Monitoring during a small development at 39, Crown Street, Bury St Edmunds, within the early medieval planned town, identified four pits, two dated as 19th century or later and two undated. Also found was a possible post-medieval flint footing indicating that a wall belonging to a small brick out-building probably extended beyond its current line. The earliest feature found was indicated by a clean silt-filled sloped edge which seemed to cut natural but underlay all other features, its clean fill suggesting that it may predate the early medieval urban occupation of the town. Its function is not known. Finds from the site were all post-medieval.