Gosford Castle

Overview

Gosford Castle sits in the heart of Gosford, a townland of Markethill in County Armagh, Northern Ireland. Often described as Ulster’s largest Grade A listed building, the castle dominates a 240‑acre estate that is now managed as Gosford Forest Park. While the castle itself has been converted into private apartments and is not open to the public, its striking Norman‑revival façade can be admired from several well‑signposted walking routes that wind through the park’s woodlands, arboretum and walled garden.

The estate is a popular destination for families, hikers and wildlife enthusiasts. Red deer, long‑horn cattle, rare breeds of sheep and draught horses roam the park, and a network of 16 km of multi‑use trails offers options for walking, cycling and horse‑riding. For Game of Thrones fans, Gosford Castle is a recognised filming location – it stood in for the House of Tully’s stronghold in the hit series.

History

The Acheson family were granted land in County Armagh in 1610 during the Plantation of Ulster. After an earlier castle was destroyed in the 1641 rebellion, the family built a manor house that remained their seat until the early 19th century. In 1819 Archibald Acheson, 2nd Earl of Gosford, commissioned London architect Thomas Hopper to design a new house in the Norman‑revival style. Hopper, assisted locally by Thomas Duff, began construction that would not be fully completed until 1859, when his assistant George Adam Burn rebuilt the entrance front.

The Achesons occupied the castle until 1921. During the Second World War the building was commandeered for troops and even housed a prisoner‑of‑war camp. Post‑war, the Ministry of Agriculture acquired the demesne, creating Gosford Forest Park, while the castle itself served various public functions – from record storage to a barracks – before falling into disrepair.

In 2002 the Forest Service regained control, and in 2006 the decaying structure was sold for a nominal £1,000 to Gosford Castle Development Ltd. A £4 million restoration programme transformed the interior into 23 private residences, preserving original staircases, colour schemes and key rooms such as the vaulted Inner Hall and the scarlet‑accented library. Residents began moving in from 2008, and the castle remains a private residential complex today.

What to See & Do

Viewing the Castle

Although the interior is not accessible, the Castle Trail (1.8 miles, circular) starts at the park’s main car‑park and takes walkers past the arboretum, the southern end of the walled garden and directly to the boundary of the privately owned castle. From the trail you can photograph the castle’s imposing south front, the intricate entrance façade and the surrounding landscaped grounds.

Forest Park Activities

• Deer Park Trail – a 1.2‑mile loop that skirts the red‑deer enclosure, offering close‑up wildlife spotting.
• Boundary Trail – a 3.4‑mile circuit that crosses the Drumlack River and showcases mixed woodland, oak and Norway spruce plantations.
• Outdoor Play Area – a 3 km woodland zone with five unique superstructures designed for children.
• All‑Out Trekking – an inclusive service that provides battery‑powered off‑road vehicles for visitors with limited mobility (age 12+).

Wildlife & Amenities

The park is home to red squirrels, woodpeckers, butterflies and a herd of gentle draught horses. Picnic tables (some with BBQ stands) and a designated picnic area are scattered throughout, while on‑site catering offers hot food, coffee, ice‑cream and snacks. Accessible toilets with baby‑changing facilities are located near the main car‑park.

Game of Thrones Connection

Fans of the HBO series will recognise Gosford Castle as the stand‑in for House Tully. The castle’s mock‑Norman battlements and grand interiors provided the backdrop for several dramatic scenes, including the beheading of Rickard Karstark.

Practical Information

Address: 7 Gosford Demesne, Markethill, County Armagh BT60 1GD Coordinates: 54.30711 N, ‑6.51386 W Opening: The castle itself is private and not open to visitors, but the surrounding forest park is open all year. Parking: A charge applies on arrival; annual passes are available. Overflow parking is provided during busy periods. Accessibility: The park’s trails are largely level, and the All‑Out Trekking service offers wheelchair‑friendly access to most routes. Detailed accessibility information is available via the park’s AccessAble guide: Gosford Forest Park | AccessAble. Getting There: The site is reachable by car via the A28 from Armagh or the M1 motorway. Public transport options include local bus services to Markethill; the nearest airports are Belfast International and City Airport. Nearby Accommodation: While the castle is not a hotel, a range of B&Bs and self‑catering options are available within a 60‑mile radius, including Pinegrove Lodge (Ballymena), The Old Vicarage (Ballywalter) and Atlantic Lookout (Portrush).

Visitors should plan their walk routes using the colour‑coded way‑mark discs placed on wooden posts throughout the park. The Castle Trail offers the best viewpoint of Gosford Castle, while the Deer Park and Boundary trails provide broader scenery and wildlife encounters.

Note: As the castle is a private residence, photography of the interior is prohibited. Exterior shots from the public trails are welcomed.

Nearby attractions

If you have time, consider visiting other historic and natural sites in County Armagh:

• Ardress House – an 18th‑century National Trust house with beautiful gardens.
• Brownlow House – a grand Victorian mansion set in a parkland estate near Darver.
• Gosford Forest Park – the wider forest estate offers additional trails, a lake and a visitor centre.
• Armagh City – explore the cathedral city’s historic streets, the cathedral, and the observatory.

These sites can be combined into a full‑day itinerary, especially for visitors staying in nearby towns such as Markethill or Lurgan.