Plas Llanarmon

House, rubble stone with slate roofs. Short main range dominated by crosswings of unequal size, the smaller wing to the right forming a storeyed porch. Stone side wall stack on main S crosswing and large stone square stack towards N end of ridge, at junction with roof of smaller NE crosswing. Two storeys and attic. E front has broad gabled crosswing to left and lower narrower gable projecting to right. Left crosswing gable has C19 timber bargeboards and C20 windows probably replacing late C19 sashes. Attic casement pair, two 6-pane hardwood windows to first floor and to ground floor, the latter larger, with renewed red brick cambered heads. S side of crosswing has external chimneybreast to right, then large C20 stair-light with brick head. One window each floor to left. Recessed centre of E front has large C20 hardwood casement pair to first floor under eaves and similar large window below. Projecting right gable has moulded stone coping with kneelers. Pair of large C20 4-pane sashes to first floor, small C20 4-pane sash to ground floor left and part-glazed door to right. Door has stone voussoirs to cambered head. N side is windowless and continuous with N end of main range, which has C19 overhanging eaves and first floor C20 casement pair. Ridge line of this gable back to chimney is slighlty lower than ridge S of chimney.

South crosswing said to have an important C17 decorated plaster ceiling in panels with vine trail and floral trail motifs, in centre a human figure with flowers. One plastered beam. To W, in crosswing, is stair hall with oak dog-leg stair. Turned balusters and square newels. Centre room has one heavy beam and deep fireplace to right.