Following the submission of a planning application for the conversion of a former barn at Manor House, Howgill Lane, Rimington, Lancashire into a dwelling, a condition was placed on the decision notice by Ribble Valley Borough Council, following advice by the Lancashire Archaeological Advisory Service, requiring that a record of the structure be made beforehand, and that groundworks be monitored. This report deals with the watching brief element, which was carried out on 20th and 27th October 2021. The watching brief monitored excavation of trenches along the inside edge of the walls of the building after the removal of the internal floors and dividing walls. Although no archaeological features were observed, an unstratified pipkin handle demonstrates medieval activity at the site. The remainder of the few finds that were recovered were all of post-medieval date.