An archaeological watching brief was carried out at the site during the hand excavation of five foundation pits for wall support piers within the cellar. No archaeological remains were uncovered relating to the medieval grange. A brick floor was recorded, dating to the 18th - 19th centuries, and it incorporated a shallow gully along the outer side wall of the cellar. Fine sand was used for bedding material, with a later cinder-like bedding material having been encountered beside the southeast wall of the cellar. An earlier building survey identified the cellar as having belonged to Period C of the building's development, which dates to the mid - late 17th century. A fresh brick fragment from the fill of this wall's foundation cut dates to the 18th - mid 19th centuries, which is comparable to the date of the brick floor and may date a rebuild of the cellar wall, or suggests the cellar is of a later date than originally thought.