Ty Mawr aka The Great House

Ty Mawr, also known as The Great House, is a Grade II* listed building constructed of rubble with ashlar dressings and a Welsh slate roof. It features large square stone end stacks with grooves on each face to define the flues, along with additional stacks on the rear wings. The building has a near-symmetrical frontage that was created in the 17th century by adding a south range with a southeast wing to an earlier north wing, which includes a northeast porch that now forms the right-hand advanced wing, balanced by a 17th-century wing to the left of the four-window main range.

The two-storey, four-bay central range has mullioned windows under square hoodmoulds on both storeys. The cross bays at each end have similar windows, including an attic window to the left. Most windows feature stone voussoirs or segmental arches above and have replaced leaded quarry glazing. The original three-light window on the ground floor to the left has sunk chamfers. The central Tudor-arched doorway is adorned with a moulded hood, a surround with two hollow chamfers on thistle stops, and decorative spandrels. The north gable end of the main range, located on the right elevation where the staircase is situated, has similar windows on four levels, two of which are now blocked. An added service cross wing, set back from the roadside, has similar windows and a pointed arched former doorway, along with another blocked doorway. The south frontage features a columbarium with 20 nesting holes in four tiers, three storeys of windows in the gable end, a doorway, a projecting staircase bay to the left, and an entrance doorway with ashlar jambs to the right.

The plan reflects the 17th-century enlargement of the central passage, with main rooms located on either side. The room to the right, part of the 16th-century house, has reeded beams with the reeds running out into stops, a large open fireplace with a stone lintel and chamfered surround, two Tudor-arched stone doorways with chamfered surrounds and broach stops, and a flag floor. The staircase retains dark oak turned posts. The room to the left features curved stone stairs with curved stone treads, positioned to the left of a remodelled fireplace with a wide timber bressummer.