Great Treadam House

Great Treadam House is a substantial early 19th century neo-classical house. The main elevations are finished with painted roughcast, featuring a plinth and a stepped cornice. The roof is slate, hipped in shape, and has rendered chimneystacks. The symmetrical southwest front is two storeys high. Windows are hornless sash windows, set within openings that have flat heads and shallow stone sills. The first floor is dominated by an 18-pane round-arched sash window centrally positioned, flanked by smaller 18-pane sashes on either side. On the ground floor, a central flight of stone steps leads to an entrance. The classical porch has a flat canopy, Doric columns, a frieze decorated with triglyphs and guttae, and a dentil cornice. The entrance door is a 19th century six-panel design, with the upper two panels glazed. Flanking the porch on each side are 18-pane sash windows. A 20th century, single-storey, lean-to addition with a 20th century window is attached to the end-wall on the far left. The southeast garden elevation features end pilasters and a centrally advanced section. The first floor has two 18-pane sashes and a 20th century window set within an older opening, while the ground floor mirrors this pattern with similar sashes and 20th century glazed double doors. The northeast end-wall of the garden elevation has a canted bay window with a hipped slate roof and small-pane casement windows. The northwest side has a small slate lean-to, followed by a 19th century two-storey hipped addition and then a two-storey gabled block with 20th century windows in what were original openings.

The main entrance opens into a stair hall. Six-panel doors lead to the principal ground floor rooms on both the left and right, and these rooms have panelled shutters. A room on the left side contains 17th century transverse and axial moulded ceiling beams. A late 17th century straight oak staircase features broad stair treads, a square fluted newel post beaded at the angles, with an ogee moulded cap, rectangular balusters, and a moulded handrail. A first-floor bedroom on the left has been partitioned and contains late 17th century two-panel doors, alongside exceptionally elaborate moulded ceiling beams with run-out stops, likely dating back to the early 17th century. A small “wig room” is located over the entrance lobby. The roof structure consists of three bays with collar trusses and two tiers of purlins. At the rear of the house, the 19th century staircase includes winders, a round newel, square balusters, and a ramped handrail.