Trim Castle

Trim Castle Welcome to the official page for Trim Castle an OPW managed site.

Trim Castle, the largest Anglo-Norman castle in Ireland, was constructed over a thirty-year period by Hugh de Lacy and his son Walter. Hugh de Lacy was granted the Liberty of Meath by King Henry II in 1172 in an attempt to curb the expansionist policies of Richard de Clare, (Strongbow). Construction of the massive three storied Keep, the central stronghold of the castle, was begun c. 1176 on the s

ite of an earlier wooden fortress. This massive twenty-sided tower, which is cruciform in shape, was protected by a ditch, curtain wall and moat. Visitors have two options: they can walk around the grounds on a self guided tour or they can join a guided tour which takes them to the top of the Keep.

Today, over 800 years since Hugh de Lacy and his son Walter built the formidable Anglo-Norman castle of Trim by the Rive...
11/06/2026

Today, over 800 years since Hugh de Lacy and his son Walter built the formidable Anglo-Norman castle of Trim by the River Boyne, the most impressive view of the castle is undoubtedly from outside the west and south walls.
On the limestone bedrock an 8 metre high, 1.4 metres wide wall was built interlinked with several robust D-shaped flanking towers and the south facing Dublin gatehouse with a Barbican. A slight depression at the base of the walls is all that remains of the wet moat. Other classic Norman castle features still to be seen on these walls are sallyports, open chutes for the garderobes, still intact plunging loopholes and the stone grooves which once held the portcullis gate.
Heritage Ireland OPW - Office of Public Works
Trim Visitor Centre

Trim Castle OPW staff were delighted to host the launch of the 2026 GAA All-Ireland Senior Football championship at Trim...
03/06/2026

Trim Castle OPW staff were delighted to host the launch of the 2026 GAA All-Ireland Senior Football championship at Trim Castle on Monday, 1st June.
Pictured below are Ronan Wallace (Westmeath), Aidan Forker (Armagh), Tadhg Morley (Kerry), Diarmuid Murtagh (Roscommon), Ciaran Caulfield (Meath).

Heritage Ireland OPW - Office of Public Works Trim Visitor Centre Discover Boyne Valley Ireland's Ancient East

Tomorrow, 3rd June, is the first Wednesday of the month and that means all tours of the Keep at Trim Castle are to ind...
02/06/2026

Tomorrow, 3rd June, is the first Wednesday of the month and that means all tours of the Keep at Trim Castle are to individuals and families. Tours are set by request and will continue regularly throughout the day until last possible time for a tour at 4.45pm. The tours last between 45 minutes to 1 hour. Please bear in mind that the tour involves ascending and descending narrow and steep spiral staircases and may not be suitable for some. If you would like further information on Trim Castle or any other OPW managed heritage site please do check our website at www.heritageireland.ie
Looking forward to your visit as always!
Heritage Ireland OPW - Office of Public Works
Trim Visitor Centre

Daffodils, daisies and buttercups blooming on the grounds of Trim Castle during . Rings of sporocarps, sometimes called...
12/05/2026

Daffodils, daisies and buttercups blooming on the grounds of Trim Castle during . Rings of sporocarps, sometimes called 'Fairy Rings' are appearing on the castle grounds. With any luck we might have some mushrooms appearing from them in August!
Heritage Ireland OPW - Office of Public Works
📷 Jimmy

Tomorrow, Wednesday 6th May, is Free Wednesday at Trim Castle. Come and join us on a free tour of the Keep at the castle...
05/05/2026

Tomorrow, Wednesday 6th May, is Free Wednesday at Trim Castle. Come and join us on a free tour of the Keep at the castle!
Heritage Ireland OPW - Office of Public Works

📷 Jimmy

30/04/2026

A 360° view from the roof of the Keep of Trim Castle (over 800 years old!) during one of our sunnier days recently.
You can take in this view too - weather permitting - on one of our tours of the Keep. Just enquire at the ticket office on arrival for the next available tour and our staff will be happy to assist you. Last possible tour time of the day is 4.45pm.
Looking forward to your visit!
Heritage Ireland OPW - Office of Public Works
Trim Visitor Centre

If the cherry blossoms are blooming then summer will soon be here (and hopefully it'll be a good one). Lovely view of th...
14/04/2026

If the cherry blossoms are blooming then summer will soon be here (and hopefully it'll be a good one). Lovely view of the castle this morning from St. Patrick's church.
📷 Margaret
Heritage Ireland OPW - Office of Public Works

Visitors arrive through the Trim Gatehouse today on entering Trim Castle, but what kind of view would you get if you ent...
09/04/2026

Visitors arrive through the Trim Gatehouse today on entering Trim Castle, but what kind of view would you get if you entered the castle from the second gatehouse, the Dublin or Barbican Gatehouse, constructed by the Anglo Normans in the 12th century? Well, here is the the view that would greet you on a nice sunny day at Trim Castle while walking through the passage arch..
📷 Jimmy
Heritage Ireland OPW - Office of Public Works

The clocks are moving forward tomorrow in Ireland. Longer days ahead and hopefully brighter and warmer too, like this ph...
28/03/2026

The clocks are moving forward tomorrow in Ireland. Longer days ahead and hopefully brighter and warmer too, like this photo. If you are out and about in the months ahead do drop in to Ireland's oldest Anglo-Norman stone castle and the largest one too! Always a pleasure to see you!
📷Jimmy
Heritage Ireland OPW - Office of Public Works
Trim Visitor Centre

Another tour through the Keep of Trim Castle begins during the brighter days we've been having lately. Our tours take yo...
21/03/2026

Another tour through the Keep of Trim Castle begins during the brighter days we've been having lately.
Our tours take you on an engaging and informative narrative of the Anglo Norman beginnings, the De Lacy legacy, medieval architecture, functions of different chambers and halls and topped by the highlight of the tour, a magnificent view of the rich medieval and modern heritage of Trim town as well as the wider landscape including as far as the Cooley mountains.
Our tours last up to 1 hour and tickets for them can be bought at the ticket office on arrival or you can present an OPW Heritage Card. We set tours according to request and the last tour of the day until October 30th is 4.45pm.
They're really popular and you're very welcome to join us on one!

Heritage Ireland OPW - Office of Public Works
Trim Visitor Centre

Address

Castle Street
Trim
C15HN90

Opening Hours

Monday 10am - 5pm
Tuesday 10am - 5pm
Wednesday 10am - 5pm
Thursday 10am - 5pm
Friday 10am - 5pm
Saturday 10am - 5pm
Sunday 10am - 5pm

Telephone

0469438619

Website

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