Mount St John

Mount St John is a large house built in 1720 and significantly extended in the 19th century. It is constructed of sandstone ashlar, with later brickwork added to the rear. The building features a hipped Welsh slate roof and tall stacks. It has two storeys, with a later section that is partly three storeys and includes a high parapet.

The south elevation, which is the original entrance front, consists of five bays arranged in a 2:1:2 pattern with a central projection. There is a plinth and giant pilasters at the corners. The former central entrance has been converted to a glazed opening, framed by a shouldered architrave and topped with a cornice. The tall, narrow windows contain later sashes with glazing bars and are set under keystones. A band runs along the first floor, where the central window features a shouldered architrave, along with a moulded cill and apron. The eaves have a band and a moulded cornice, while the panelled parapet is topped with urns at the corners. The central bay is adorned with a pediment.

To the west, there is a five-bay return with a projecting central bay. This elevation continues to the north in a similar style for four bays, followed by an additional three bays that rise to three storeys, creating the current principal facade. The east facade features a Venetian staircase window.

The interior is reputed to be of good quality, with an entrance hall that includes two screens of fluted composite columns and a staircase with rich balusters and a bottom newel post, as noted by Pevsner in "North Yorkshire, the North Riding."