What are the opening hours?

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

Trim Castle

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Trim Castle

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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 site 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.

13/10/2026

❗ Please note that Trim Castle will be closed tomorrow Wednesday October 14th.
Heritage Ireland Trim Visitor Centre Discover Boyne Valley

08/10/2026

Beautiful sunshine at Trim Castle this morning! ☀️
📷 Jimmy
Heritage Ireland OPW - Office of Public Works
Trim Visitor Centre

29/09/2026

It's been a great summer season seeing so many visitors enjoying Trim Castle. Our opening times are changing from Thursday, October 1st. We will be open 7 days per week at the earlier time of 9am and last entrance to the Castle is at 4pm. Last possible tour of the Keep tower will start at 3.45pm from next Thursday. Looking forward as always to your visit.
📷 Jimmy
Heritage Ireland OPW - Office of Public Works

21/09/2026

The changing patterns of autumn weather over Trim Castle are well and truly here. We're still open from 10am with last entrance at 5pm until the end of September. Do drop by and visit Ireland's largest Anglo-Norman Castle, always glad to see you. And great news, the new pedestrian bridge over the River Boyne nearby will be open by the end of October.

Heritage Ireland OPW - Office of Public Works
Trim Visitor Centre

01/09/2026

Summer's over and school is back but what a summer it's been with thousands of visitors at Trim Castle. Thank you so much for all your visits and remember we'll still be open seven days per week until early November. Our opening times for the next month will remain 10am with last entry at 5pm. Last possible tour time is 4:45pm. Opening times will change on October 1st to 9am - 4pm.
Tomorrow September 2nd we have the 1st Wednesday of the month and that means all tours are free for individuals and families. We set tours according to request so do enquire at the ticket office on arrival and a staff member will let you know when the next public tour will begin. But if you would just like to explore the grounds with a self-guiding tour, as always, it is free of charge.
See you soon!
📷 Jimmy
Heritage Ireland OPW - Office of Public Works Trim Visitor Centre Discover Boyne Valley

11/08/2026

HERITAGE WEEK AT TRIM CASTLE!

The ever popular Medieval Armoury Display is returning to Trim Castle on both Sundays of Heritage Week with a presentation by the engaging and very knowledgeable Danny Denman.
The schedule is as follows:

Sunday, 16th August:
11:30am - 12:30pm
2:30pm - 3:30pm

Sunday, 23rd August:
11:30am - 12:30pm
2:30pm - 3:30pm

The event is free of charge and is wheelchair accessible, taking place on the grounds of the castle. Everyone of all ages welcome to join us and Danny!
📷 Jimmy
Heritage Ireland The Heritage Council Trim Visitor Centre

07/08/2026

On Saturday, 15th August next Heritage Week begins at Trim Castle with FREE TOURS inside the Central Keep tower all day. These tours are very popular and limited in number so do get your place (your coloured wristband) at the Ticket Office on arrival. At the moment we do not have a facility for prebooking so places are offered on a first come first served basis. Tours will run regularly throughout the day but if you have a waiting period until your tour starts you can explore the grounds of the castle with multiple information panels and excellent illustrations for self-guiding. We're right in the heart of Trim and on the south bank of the River Boyne so there are several built historical and natural places to explore within a few minutes walk of the castle, as well as opportunities for refreshments at cafes, restaurants and hotels close by.
Please note that due to the historic nature of the Keep tower it is not wheelchair accessible and the steep medieval spiral stairs may be challenging for some visitors.
We open at 10am and last possible tour of the Keep is at 4.45pm.
See you here on the 15th and indeed throughout !
📷 Jimmy
Heritage Ireland OPW - Office of Public Works
Trim Visitor Centre Discover Boyne Valley

04/08/2026

Tomorrow is the first Wednesday of the month and once again Trim Castle tours are free for all individuals and families. We're open from 10am and we set tours according to request, last possible tour time for the day is at 4.45pm. Come along and join us for an entertaining and informative hour!
Heritage Ireland OPW - Office of Public Works
Trim Visitor Centre Discover Boyne Valley
📷 Jimmy

30/07/2026

As with many other participating OPW managed Heritage sites Trim Castle is offering free tours of the central Keep tower to Under 18s for the month of August, starting this coming Saturday. This is a perfect opportunity for the whole family to explore the finest and largest built legacy of early Anglo-Norman stone castles of the late 12th century with an hour of engaging narrative and captivating views.
Just enquire at the ticket office at the entrance for the next available guided tour. Last possible tour of the day is at 4.45pm.
If you don't have time for a tour the good news is that entrance to Trim Castle grounds is free for all visitors and self-guiding.
As always looking forward to seeing all our visitors and we wish you an enjoyable visit!
📷 Jimmy
OPW - Office of Public Works Heritage Ireland

21/07/2026

It's been great seeing so many visitors at Trim Castle during this fine weather. Looking forward to seeing many more of you in the weeks ahead! Some views of De Lacy's Trim Castle in sunny July.
📷 Jimmy
Heritage Ireland OPW - Office of Public Works
Discover Boyne Valley

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

https://heritageireland.ie/visit/places-to-visit/trim-castle/

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