As part of the redevelopment of the Eaden Lilley Department Store, 14-15 Market Street was substantially demolished and rebuilt. These works included the removal of the existing basement concrete slab and the insertion of piles for the new building. In view of the site's position within Cambridge, the County Archaeology Office considered that there was a possibility that archaeological remains would be exposed and disturbed in the process of these works. A brief was prepared by the CAO to mitigate the impact of the development on the archaeological resource. Unfortunately, no archaeological deposits or features were identified in any of the areas exposed beneath the concrete slab. Within the site all the archaeology and the top metre or so of the natural subsurface had been obliterated, probably by the insertion of the present basement. It seems most likely that the lack of any evidence of deep cut features is due entirely to this and not part of negative evidence indicating that there were no wells or quarrying.