PRN 64440 Fieldwalking in advance of a gas pipeline development found Medieval and post-medieval pottery, and stone scatters to the north of the field were noted but thought to be of natural origin.{1}{2} No archaeological features were noted during topsoil stripping, but the excavation of the gas pipeline header trench revealed part of a masonry structure and a number of linear features.{1}{2} The foundations of four walls and a demolition layer were excavated. The most substantial wall had too upper courses of flat limestone slabs containing a central core of limestone rubble set on a bed of pitched limestone footings. This wall, on a southwest to northeast alignment, survived for 3.2m and was between 1.1 and 1.2m wide. No mortar was seen, so the structure appears to have been of dry-wall construction. To both the west and east, the wall came to abrupt halts, the stone-work apparently robbed away. Pottery found within the lower course has been dated to the late twelfth to fifteenth centuries AD. The northern face of this wall was formed by a layer of flattish limestone fragments. Butted agaonst this face and extending at a right-angle to it, was another wall. This wall extended for 1.6m to the north and consisted of crudely laid horizontal limestone slabs and fragments. A third wall was butted against the northern end of the crudely laid wall, forming a right-angled corner and running parallel to the first wall for 1.75m. A single course of pitched footings running into the eastern edge of the header trench was also recorded. A layer of limestone rubble covered the surface beyond the outer faces of the walls and appeared to derive from their demolished upper parts. Pottery recovered from this layer has been dated to the early to mid thirteenth century. A layer of compacted earth formed a surface in the area between the walls. This layer contained a significant amount of pottery dating to the twelfth to fifteenth century. To the south of the structure, a number of southwest to north east ditches were also excavated. One of these ditches contained large quantities of limestone fragments, for the most part randomly arranged but with occasional alignments reminiscent of the facing slabs in the masonry to the north. Where it intersected the eastern egde of the pipeline header trench, it was overlain by a group of limestone pieces forming a small platform approximately 1.1m square which appeared to have resulted from the break-up of four larger slabs. A large ditch to the north of the structure was interpreted as a filled-in stream or dyke. Cartographic and artefactual evidence suggest that this watercourse was still open in the 1950s. It is possible that the wall foundations encountered on site belong to a watermill. Quern and millstone fragments found in a ditch support this. If the building was a watermill, a leet would have been necessary to drive the wheen as the building was not immediately adjacent to a watercourse. However, there was no evidence of such a watercourse.{1}{2} The wall foundations are on the same alignment and is adjacent to an earthwork pillow mound found immediately northwest (PRN 62007). It is possible that the pillow mound is actually a continuance of these walls (ie a single building) or a separate, yet associated structure.{3}