Castletown House

Overview

Castletown House dominates the Celbridge skyline as the finest example of Palladian architecture in Ireland. Designed for William Conolly, the Speaker of the Irish House of Commons, the mansion was completed in the late 1720s and has since become a symbol of the country’s Georgian heritage. Set on the banks of the River Liffey, the estate stretches over 120 acres of landscaped parkland, river walks, a restored lake, and a collection of ornamental follies such as Mrs Siddon’s Temple. The house and its grounds are now owned by the State and managed by the Office of Public Works (OPW).

History

The story of Castletown begins in 1722 when William Conolly, a self‑made millionaire who rose from a modest background in County Donegal to become Speaker of the Irish Parliament, commissioned a grand country house to reflect his political power and immense wealth. The façade is attributed to the Italian architect Alessandro Galilei, while Irish architect Sir Edward Lovett Pearce oversaw the overall design and added the wings. Conolly died in 1729, but his widow Katherine continued to live there, commissioning a series of spectacular follies – including the Wonderful Barn and Conolly Folly – to provide employment during hard times.

In the mid‑18th century the house passed to Conolly’s great‑nephew Thomas and his wife Lady Louisa. Their taste is evident in the cantilevered Portland‑stone staircase, the richly stuccoed plasterwork by the Lafranchini brothers, the 80‑foot Long Gallery, and the unique Print Room – the only surviving example of its type in Ireland. Lady Louisa also shaped the landscape, adding river walks and a bathing house on the Liffey.

The Conolly family retained the house until 1965, when it was sold to private developers. Fearing vandalism, Desmond and Mariga Guinness purchased the property in 1967 and launched a major restoration under the Irish Georgian Society. The Castletown Foundation was created in 1979 to safeguard the house, and in 1994 the OPW took over ownership, beginning a new phase of state‑led conservation.

Recent Developments

• Access restored – After a two‑year dispute, vehicular access from the M4 motorway and the main car park reopened in December 2025, re‑uniting the demesne.
• Guided tours resume – The house is scheduled to reopen for daily guided tours on 15 March 2026 and will remain open until 4 November 2026.
• Customer‑service award – In 2018 Castletown House received Fáilte Ireland’s first Excellence in Customer Service award in Kildare, recognising the professionalism of the OPW guiding team.
• Café status – The Courtyard café is closed for the foreseeable future. An outdoor coffee van operates Monday‑Thursday in the West Courtyard, offering hot drinks and snacks.

What to See & Do

• The Grand Staircase – A striking cantilevered staircase of Portland stone that dominates the entrance hall.
• Green and Red Drawing Rooms – Former reception rooms; the Red Drawing Room now showcases a restored 19th‑century silk damask (conserved 2015‑2018).
• Print Room – The only intact 18th‑century print room in Ireland, displaying cut‑out images fashionable in the 1760s.
• Long Gallery – An 80‑foot room decorated in a Pompeian palette of blue, red and gold, once used for grand entertainments.
• State Bedroom – Furnished with Venetian chairs, once hosted visiting viceroys.
• Biodiversity Garden – Family‑friendly area with a fairy‑trail, play space and educational signage.
• River Walks & Lake – Meander along the Liffey or around the restored lake, spotting the remains of Lady Louisa’s bathing house and the neo‑classical temple.
• Events – Concerts, markets and craft fairs run throughout the year; all are free to attend, though some workshops require pre‑booking.

Events & Seasonal Highlights

• Summer Concert Series – Open‑air classical and folk performances on the lawn from June to August.
• Craft & Artisan Markets – Usually the first Saturday of each month, showcasing local makers.
• Heritage Days – Special guided tours focusing on the Print Room, Lafranchini plasterwork and Lady Louisa’s landscape legacy.
• Family Workshops – Interactive activities in the Biodiversity Garden, often linked to Earth Day and school holidays.
• Award‑Winning Service – The site’s staff were recognised with a Fáilte Ireland Customer Service award in 2018.

All events are free, though some workshops need advance booking via the website.

Practical Information

Opening hours

Admission

Getting there

• By car – Access the car park from the M4 (junction 6). The OPW restored the vehicular entrance in December 2025. Limited general parking is available; a few accessible spaces are located off Lime Avenue.
• By bus – Dublin Bus C4 (Ringsend → Celbridge) stops at Castletown Gates (stop 3907). The Go‑Ahead 120 service also stops at English Row (stop 7085) with a short walk to the estate.
• By train – From Hazelhatch station take the W61 bus to Celbridge Main Street (stop 3907).
• By foot or bike – A pedestrian entrance runs from Celbridge’s main street along a lime‑tree‑lined avenue; a riverside footpath follows the Liffey.
• Parking – No general visitor parking is currently provided; visitors are encouraged to use public transport or active travel. Accessible parking is limited and located near Lime Avenue.

Facilities

• Baby‑changing rooms, wheelchair‑accessible toilets, lift, gift shop, free Wi‑Fi, picnic areas and marked walking trails.
• Courtyard café is closed for the foreseeable future; an outdoor coffee van serves hot drinks Monday‑Thursday.
• Dogs are welcome on a lead but are not permitted around the lake (wildlife nesting area).

Accessibility

Ground‑floor rooms are fully accessible, and the estate provides wheelchair‑accessible toilets. Admission is free for visitors with disabilities and their accompanying carer. Upper floors are not suitable for limited mobility.

Contact & online resources

• Website: https://castletown.ie/
• Phone: +353 1 628 8252
• Directions: https://www.google.com/maps/place/53.349127,-6.53029
• Accessibility details: https://castletown.ie/accessibility-at-castletown/

Nearby Attractions

If you have time, consider extending your day out:

• Carton House – Another grand Palladian estate, now a luxury hotel with golf courses, just a short drive north of Celbridge.
• Irish National Stud – World‑renowned thoroughbred stud and museum, set in beautiful parkland along the River Liffey.
• Celbridge – Explore the historic town centre, the Church of St John, and the nearby Wonderful Barn.

Plan your visit early in the season to enjoy the newly restored interiors alongside the timeless beauty of the parklands. Whether you are a history enthusiast, an architecture lover, or simply looking for a scenic day out near Dublin, Castletown offers a uniquely Irish experience that blends grand interiors with tranquil natural surroundings.