Stone castle ruins with window openings on a green hill with mountains in the background.
The stone ruins of Clough Castle stand on a grassy hill overlooking distant mountains. Tourism Ireland

Clough Castle – an Anglo-Norman motte

📍 Clough, Down

🏛️ Attraction

Last updated: 29 June 2026

Overview

The mound you climb at Clough is the whole point: a 7.6m artificial motte raised by the Anglo-Normans around 1200, with a small ruined stone tower-house on top. It sits beside the village of Clough in County Down, and the name says what it is – Clough comes from the Irish An Chloch, meaning a stone or stone building. There are no ticket barriers and the site is free to walk into, which makes it a quick, rewarding stop rather than a half-day out.

If you have ten minutes, climb the motte for the view and skip nothing else; the bailey at the base is read in a glance.

History and architecture

Construction is traditionally linked to John de Courcy (c. 1150–1219), the Anglo-Norman knight who carved out a lordship in this part of Ulster. The layout is the classic motte-and-bailey: the tall earthen motte for look-out and last defence, and a small kidney-shaped bailey to the south, once cut off from the mound by a ditch 2.1m deep that you can still trace in the grass.

What’s underfoot has been dug into. Excavations in 1950 by Dudley Waterman found a timber palisade that had ringed the summit, the stone foundations of a long rectangular hall, and archer pits – the working detail of a garrisoned earthwork. The stone defences came later: a small stone keep was added in the 13th century, fell out of use, and was then rebuilt and enlarged as an L-shaped tower-house in the late 15th or early 16th century. That tower-house is the ruin on the top today. The site is a State Care Historic Monument, owned by the National Trust.

What to See & Do

Walk the Earthworks Start at the base of the motte and follow the path around the perimeter. You can clearly make out the crescent-shaped bailey to the south-east, separated from the mound by a pronounced ditch. Take a moment to imagine the original layout: the motte as the secure command centre, and the bailey as the working heart of the estate, housing stables, workshops, and living quarters for the garrison and their families.

Climb to the Summit A short grassy path leads up the motte to the tower-house ruin. The climb is steep but brief, and the reward is the view: east to Downpatrick, south to Dundrum, north to Belfast Lough and west to Slieve Croob. It’s a working look-out point still doing its job 800 years on.

Photography & Sketching The contrast between the weathered stonework, the lush green mound, and the open sky makes Clough Castle a favourite subject for photographers. The site is particularly striking during the golden hours of early morning or late afternoon, when long shadows accentuate the earthworks. The ruins also provide a quiet, atmospheric backdrop for landscape sketching or simply enjoying a picnic in the fresh air.

Getting There & Accessibility

Clough Castle is about 27 miles from Belfast, on the A24 between Ballynahinch and Newcastle, right by the village. There is a free car park at the site.

Accessibility The approach to the castle is flat and grassy, making the base of the motte and the surrounding bailey accessible for wheelchairs and pushchairs. However, the path up to the stone keep is uneven and steep, which may be challenging for those with mobility issues. There are no permanent toilet facilities on site, but public conveniences can be found in the nearby village of Clough.

What to Bring The hilltop location can be exposed and windy, so a light jacket or windbreaker is advisable even in summer. Comfortable walking shoes are recommended for navigating the grassy slopes and uneven ground around the ruins.

Practical Information

ItemDetails
Opening HoursOpen access all year, dawn to dusk
AdmissionFree
ParkingFree on-site car park
FacilitiesNone on site (toilets and refreshments in nearby village)

Nearby

Clough sits on the road to the Mourne coast, so it pairs well with bigger days out south and east in County Down:

  • Dundrum – just south, with the far more substantial ruins of Dundrum Castle on its own hill above the bay.
  • Newcastle – the seaside town at the foot of the Mournes, the natural place to stop for food and a beach.
  • Downpatrick – east, the county town, with the cathedral, the reputed grave of St Patrick and Inch Abbey on its edge.

If you only do one of the four, climb Clough’s motte for the view, then push on to Dundrum Castle – it gives you a far bigger fortress for the same short walk uphill.