Overview
Hillsborough Castle is a working royal residence, not a museum piece: the Secretary of State for Northern Ireland lives here, and the King and other members of the royal family stay when they visit the region. It sits in Royal Hillsborough, County Down, about 20 minutes south of Belfast, and has been run by Historic Royal Palaces since 2014. There are two ways in. A guided tour takes you through the Georgian State Rooms; a cheaper gardens-only ticket (£11 for adults) opens up all 100 acres of grounds. If you have children or a fine afternoon, the gardens are the better value, and kids go free in them from 27 June to 31 August 2026.
A history of diplomacy and royalty
The house was built in the 1770s for the Hill family, Marquesses of Downshire, and stayed a private estate until 1922, when the Downshires sold it to the British government. After renovations it became Government House, the official residence of the Governor of Northern Ireland from 1924 until the post was abolished in 1973.
From there it passed to the Secretary of State for Northern Ireland, and it is now the official royal residence in the region as well. Real history has been made in these rooms, including the signing of the Anglo-Irish Agreement in 1985 and an investiture in 2014, the first held in Northern Ireland since the house became a royal residence. It still hosts state visits and diplomatic talks alongside the tours.
Exploring the State Rooms
The interior is only open on a guided tour, which runs roughly 11:00–16:00 (seasonal, so check dates before you travel). A Palace Host walks you through a series of preserved rooms:
- Throne Room: Features silk-damask walls, historic coats of arms, and the ceremonial chairs used by visiting monarchs.
- Red Room: Characterised by deep crimson fabric, period portraits, and a grand chandelier.
- State Drawing Room & State Dining Room: Elegant spaces used for royal receptions and formal dinners.
- Lady Grey’s Study: A quieter, book-lined room that reflects the domestic side of life within the residence.
- Stair Hall: A sweeping staircase connecting the ground-floor reception rooms, with the original architectural detail intact.
From 15 March 2026 to 3 January 2027 the Benjamin Franklin Dining Room hosts an exhibition marking Franklin’s connection to the house. The tour is where the human stories come out, from the diplomatic negotiations to the families who lived here, so it’s worth the extra over a gardens-only ticket if the history is what draws you.
The Gardens and Grounds
The 100-acre estate is designed for leisurely exploration, with a mix of formal gardens, woodland walks, and historic features:
- Walled Garden: An 18th-century kitchen garden restored to produce fruit, vegetables, and flowers. It features espaliered apple trees and supplies seasonal ingredients to the Weston Pavilion Café.
- Yew Tree Walk: A striking avenue of ancient yew trees that once served as a main carriage route through the estate.
- Moss Walk: A shaded path lined with lime trees, offering a quiet retreat with a soft, mossy ground cover.
- Lady Alice’s Temple: A lakeside stone pavilion named after a former resident, providing a scenic spot to pause and reflect.
- Granville Rose Garden: A formal garden established by Lady Granville, featuring a curated collection of rose varieties.
- The Lake & Pinetum: A natural lake populated by swans and kingfishers, surrounded by a collection of conifers including giant sequoias planted in the 1870s.
The grounds are open seasonally, with extended hours during the warmer months. Families can enjoy dedicated play trails and activity sheets available at the visitor centre.
Practical Information
Visiting & Booking
The gardens open 10:00–18:00 (last entry 17:00) and the castle tour runs about 11:00–16:00, though times shift with the season, so check the Historic Royal Palaces website before setting out. A gardens-only ticket is £11 for adults and £5.50 for children; the combined castle-and-gardens ticket costs more and should be booked as a timed slot in advance. Historic Royal Palaces members get in free. From 27 June to 31 August 2026 children go free in the gardens, and the Beano-themed Hijinks trail runs over the same summer weeks.
Accessibility & Facilities
The estate is designed to be accessible to a wide range of visitors. Step-free routes and wheelchair-friendly paths connect the main attractions, including the Pineapple Yard, Stable Yard, and Walled Garden. Wheelchairs are available to borrow at the visitor centre, and assistance dogs are welcome throughout the grounds. Disabled toilets and baby-changing facilities are located in the Pineapple Yard, Weston Pavilion, and Stable Yard. Blue-badge parking spaces are available near the main entrance.
Getting There
- By car: From Belfast, follow the A1 southbound and the brown tourist signs; free on-site parking is at postcode BT26 6HR. Allow for the walk once you park: it’s about 20 minutes from the car park to the castle entrance, so arrive 30 to 45 minutes before a timed tour. There is also a pedestrian entrance from Hillsborough village itself.
- By public transport: Translink bus routes 238 and 38 link Belfast and Newry to Hillsborough. The nearest train station is Lisburn, five miles away, from where bus 38 connects.
- From Belfast Airport: About 30 minutes by car via the M1 and A1.
Nearby Attractions
Royal Hillsborough has independent shops, pubs and restaurants within walking distance, and the neighbouring Hillsborough Forest adds a lake and waymarked woodland walks right next door. With more time you can head back into Belfast for the Titanic Quarter.
The Weston Pavilion Café is open daily 09:00–17:00 and cooks with produce from the walled garden, so it’s at its best in late summer when the kitchen garden is cropping. Time a visit for then, bring the kids while they go free, and do the gardens before the café.