Walled Garden, Knocknalling House

An earlier to mid-19th century country house with restrained Tudor gothic detailing, alongside a large walled garden. The house is built of squared rubble walling with squared quoins and polished red sandstone dressings. The south elevation has five bays, with prominently advanced, ball-finialled gabled end bays. It features bipartite windows with four-centred arch heads beneath squared hoodmoulds. A doorway has been created in the inner left bay, with double-leaf doors. The windows are sash and case with a two-pane plate glass glazing pattern. First-floor windows break the eaves line, with triangular ball-finialled gablets and a square 'gablet' head over the centre bay.

The east elevation is asymmetrical, with a single-storey, gabled entrance porch featuring ball finials to the right. Windows are detailed similarly to the south elevation. The west elevation has three bays, with a single-storey projecting square bay to the centre, topped with a parapet and ball finials. First-floor windows are set within square-headed dormers. Adjoining to the north is a three-bay, lower kitchen wing with a piended roof. Some ground floor windows have twelve-pane glazing, while others use the earlier glazing pattern. A lower, two-storey, irregular elevation extends to the north, incorporating single-storey buildings grouped around a small, partially flagged service court. The court has a coped wall with ball finials and a bronze Herakles statue in the al antica style.

Tall diamond stacks are positioned axially and along the wallhead, and the building is roofed with slate. North of the house is a large walled garden on a sloping site, enclosed by a coped stepped rubble wall with numerous ball finials. The property forms a group with Knocknalling Barn and Stableyard.