Stable block at Llanharan House

Built across a sloping site and of 2 storeys, and basement to the W side, built of rubble stone with a hipped slate roof, which has added brick stacks behind and added skylights. The front (S) wall is 5 bays with horned sashes under keyed heads, and with small lunettes to the upper storey. The gabled centre bay is brought forward and has external stone steps leading up to a doorway with a keyed flat arch beneath a floating pediment on brackets. In the gable is a C19 sundial. On the W side are 2 basement openings comprising round headed doorways (now converted as windows).

The rear has a higher 2-stage stair tower offset to the R, under a hipped roof with plat band and small stair light. A door and window in its L side wall are beneath a single segmental arch. To the L of the stair is a round-headed doorway flanked by windows renewed in original segmental-headed openings, with loft doors further L under a gablet and above 2 small windows. A further segmental-headed window is at the L end. To the R of the stair tower is an added loose box wing which has 3 small windows renewed. Its W gable end, continuous with the wall between house and stable, has ball finials to the eaves and a carved running fox to the apex. In the gable is an armorial tablet bearing the arms of John Blandy-Jenkins.

The interior is converted for domestic accommodation. The basement comprises 2 tunnel-vaulted rooms.