Coity Mawr

Coity Mawr is a country house, largely dating to the Regency period but incorporating earlier features. It is constructed of stone rubble, rendered and scored on the rear elevation, with Welsh slate roofs, some of which are hipped. The house has a roughly "E" shaped plan, with a later addition to the south. The main entrance is at the rear, and the three projecting wings are of differing lengths.

The wing to the left has a hipped roof and a two-window range of 8/8 pane sash windows to the first floor, with a single similar window and a large 18/18 pane sash window on the ground floor; all have very shallow sills and cambered heads. The central recessed wing also has a hipped roof, and a projecting, single-storey, pedimented entrance bay, likely renewed, with central six-panel double doors beneath a keystone, flanked by 8/12 pane sash windows above and a 6/6 pane sash. The wing to the right has a catslide roof, and a similar wing to the left features a round-headed window with radial glazing bars. A later range, providing a south frontage, is built of unrendered rubble with dressed quoins and a hipped roof with overhanging eaves. This section has a three-window range of 6/6 pane sashes to the first floor, and 6-pane French windows with brick cambered heads on the ground floor, mirroring the return frontage that forms part of the east garden frontage. This garden frontage also has overhanging eaves and wide end and ridge stacks. A projecting, two-storey, gabled porch bay is centrally positioned on the south frontage, featuring a segmental pointed arched doorway with a planked door, a string course dividing the storeys, and small, hooded side windows. Windows across the frontage are generally 6/6 pane sashes, although those on the right are boxed and those on the left are set in reveals with dressed stone lintels and sills to the first floor, and cross-framed French windows below.

Attached to the north side are a cottage and barn range, separated by an embattled courtyard wall which is listed separately. To the south is a garden wall with a pointed arched doorway of dressed stone.

The eastern side of the house, representing the older part, originally comprised three long rooms, formerly single depths, on either side of the former porch entrance. The walls are thick in this section, and the library contains a coffered ceiling. Behind and parallel with the main frontage is a passage linking the two early 19th century staircases at each end of the house; the staircase to the south is the grander, rising cantilevered from the rear wall and lit by a top light, with a wreathed handrail and stick balusters. Classical motifs are present, including fluted door and arch surrounds with rosettes, and six-panelled doors.