1, Cornwell

No. 1 Cornwell is a house that likely dates back to the 16th century or earlier, with later additions and alterations, including renovations around 1939 by architect Clough Williams Ellis for Mrs. Anthony Gillson of Cornwell Manor. The building features uncoursed ironstone and limestone rubble, with straw thatch and stone slate roofs; the thatch was being renewed at the time of the last survey in September 1987.

The house has an H-plan layout, consisting of a central hall range with a cross passage at the angle and slightly projecting gabled ranges on both the left and right, with the left range likely being a later addition. It is two storeys high. The left gable has a small 19th-century casement window on the first floor and a 20th-century glazed door below. The hall range features a 19th-century paired casement window at the center on the ground floor and a two-light cavetto-moulded mullion window with leaded latticed lights just below the eaves, located to the left of a chamfered pointed doorway with a hoodmould on the far right. This doorway may date back to the 14th century and appears to be in its original position, with an infilled doorway on the rear side.

The right gable has a 20th-century leaded latticed casement window on each floor. There is an axial rubblestone ridge stack and smaller rubblestone ridge stacks on either side of the hall range, both attributed to Clough Williams Ellis. A lean-to structure with a horseshoe arch partially encroaches on the right gable and features a stepped lateral stack, likely also designed by Clough Williams Ellis. The rear of the house includes 19th-century casements and sash windows. The interior could not be inspected during the last survey but is expected to be of interest.