Voted in the Top 10 Attractions
in Ireland 2022 & 2023

Opening Hours

Open daily from 09:00 – 17:30

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Welcome to Birr Castle Demesne

Fun filled memory making day out for all who visit!

Birr Castle Demesne is set in the heritage town of Birr on 120 acres of parklands and gardens, this demesne boasts a rare collection of over 5000 species of trees and plants, an array of wildlife, and peaceful walks along rivers, waterfalls, and lake. Choice of trails and an array of events hosted throughout the year.

Prepare to be amazed by the extraordinary achievements of the Parsons family who have a global reputation for their ground-breaking inventions and feats in the fields of science, engineering, photography, astronomy, and botany. For over 400 years, this remarkable family has resided at the romantic and inspirational setting of Birr Castle Demesne that is now home to the 7th Earl and Countess of Rosse.

What you can enjoy and explore during your visit 120 acres of parklands & gardens, one of Irelands most treasured plant collections, a variety of trails, the Great Telescope, the Lunar Heat Machine, one of the world’s oldest complete darkrooms with hologram, welcome videos, Treehouse playground and Ireland Historic Science Centre.

Suitable and enjoyed by nature lovers, gardening enthusiasts, families, family groups, photographers, scientists, and historians.

Fun filled memory making day out for all who visit!

Recently voted in the 10 ten visitor attractions in Ireland, Lonely Planet x 2 accolades.

Birr Castle Demesne is set in the heritage town of Birr on 120 acres of parklands and gardens, this demesne boasts a rare collection of over 5000 species of trees and plants, an array of wildlife, and peaceful walks along rivers, waterfalls, and lake. Choice of trails and an array of events hosted throughout the year.

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Key Attractions

Birr Castle Demesne is not just a historic landmark; it is a living testament to Ireland's cultural and scientific heritage. Whether exploring the castle's rich history, marveling at the wonders of the universe, or simply basking in the serenity of the gardens, visitors are sure to be captivated by the allure of this remarkable Demesne.

Castle Terrace

Fun filled memory making day out for all who visit Birr Castle Demesne

The Award-Winning Gardens of Birr Castle Demesne in Ireland are both rich in amazing feats of science and engineering, as well as rare trees and flowers, wonderful wildlife, walks along peaceful rivers and the lake. Celebrating 400 years in 2021, this remarkable family have resided at the romantic and inspirational setting of Birr Castle Demesne, that is now home to the 7th Earl of Rosse. The Parsons family invite you to explore one of the most extraordinary places in Ireland. Created over generations it is an environmental and a scientific time capsule.

Become A Friend of Birr Castle Demesne

By becoming a friend of Birr Castle Demesne, you are helping to preserve one of Ireland’s most extraordinary places. Created over 400 years, Birr Castle Demesne is an environmental and scientific time capsule, whilst continuing to live, breath and evolve into a place of beauty and inspiration.

Friends memberships are available for 3 months, 6 months or 12 months. We welcome individual and family memberships.

Membership benefits:

  • Unlimited access to the gardens, Science Centre and Treehouse Playground within the demesne opening hours.
  • Walking routes totaling 10 km of trails to enjoy.
  • Regular email newsletter keeping you up to date with news and events.
  • 10% discount in the gift shop (excluding books).
  • Dogs allowed (Strick guidelines apply in line with the dog’s acts.)
  • 4 Complimentary Guest passes with each 12-month membership taken out.
Annual Memberships

Recent Google Reviews

liam edwards
liam edwards
2024-04-16
We had a great day exploring the lovely gardens at this amazing place It’s full of features like an amazing telescope river walk walled gardens lake meadows and an educational solar system systems. A nice cafe at the end of the tour.
Pat Diggin
Pat Diggin
2024-04-13
Well worth a visit if you're in the area.
Fiona O Shea
Fiona O Shea
2024-04-03
Children’s trip for Easter. 3 adults and 7 kids travelled from limerick all decked out in rain gear and we all had a fantastic time. The children loved everything about the place. It’s a hidden gem for family day out. Can’t wait to go back in nice weather and experience the magic of the grounds in the sunshine. Staff were very friendly and natural. I’ve told so many people about out great day. Inexpensive to visit and could easy pass a full day. Thank you for a lovely time and Easter quest was fun
Sarah Byrne
Sarah Byrne
2024-04-03
A beautiful space with so much to see, and with a wonderfully interesting history to learn about.
Castle Under Tree Meadow

Gift Card

Gift Cards/Vouchers can be used at Birr Castle Demesne for the purchase of Friends Membership, General Admission Tickets, Guided Tours and towards items in our Gift Shop.

Did You Know?

Discover intriguing facts and stories in our 'Did You Know?' unraveling hidden gems and enriching your knowledge journey.

Irelands Historic Science Centre

The science story is revealed through the wonders of early photography, engineering and astronomy with a special emphasis on the brilliant design and assembly of the world famous Great Telescope.

As you visit the Historic Science Centre you will discover astronomical instruments, cameras, photographs and photographic equipment used by the Third and Fourth Earls and Mary, Countess of Rosse, in the middle and late 1800s.

Also on display is electrical and engineering equipment originally belonging to Charles Parsons and used in his experiments as well as a large area devoted to the botanical work carried out in the Demesne.

Intro Video - Irelands Historic Science Centre