This report sets out the results of an Archaeological Watching Brief that was undertaken in June 2011 by MAP Archaeological Practice Ltd at Gritts Farm, Weaverthorpe, North Yorkshire 11/00232/HOUSE. The work was undertaken in accordance with a standard written scheme of investigation approved by North Yorkshire County Council. All the groundworks associated with the erection of the single storey extension. All excavations were undertaken using a back acting mechanical excavator under close archaeological supervision. No archaeological features, deposits or finds were encountered during the Watching Brief.