Evaluation by E Wragg of PCA prior to development revealed a sequence of mid 17th and 18th century layers and pits, associated with domestic and possibly small-scale industrial activities. Sealed by these deposits was an apparent 13th century horizon of mixed redeposited natural sand and silt. No features were observed in this layer, although only a small area could be examined in the confines of the evaluation trench. Subsequent excavations by H Clough of PCA revealed a large, hitherto unsuspected Medieval water feature, which greatly exceeded the extent of the excavation area. The feature, which may have been a pond, had been allowed to silt up during the early period of Reigate’s development as a town. Medieval stone foundations were found on the surface of the silty primary fills, a north-south alignment of which were thought perhaps to be a property boundary. The silting appears to have continued until the 17th century, when layers indicative of a more solid floor were encountered. Numerous indications of 18th and 19th backyard activity were also found. The results of this excavation, particularly with regards to the Medieval sequences, are suggestive of shifting settlement patterns during the first part of Reigate’s existence, and have implications for studies of the early urban period.