Trenching evaluation on the site of a new basemented building on Union Road, Cambridge revealed evidence of very low levels of activity from at least the medieval period onwards. Though there are four small features recorded as possible earlier pits, they are most likely natural silt patches or tree throws and contained no finds. Medieval agricultural activity in this area, as it becomes part of the Cambridge East Fields, is signified by a furrow running East-West across site, which contained a sherd of late medieval green glazed pottery. This was followed by a period of intensive post medieval activity. Following enclosure in 1807, this part of Cambridge was rapidly built up. The 1888 OS map shows a row of houses occupying the street frontage of the site, all of which were demolished by the mid-1970s.