Group Enquiry Form

If your enquiry is of a general nature, the team here at Heritage Island will respond to you directly. If it is more appropriate for the attraction(s) to respond to you directly, we will request them to do so.

Birr Castle Gardens and Science Centre
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Birr Castle is an exciting attraction with award-winning gardens, Great Telescope, Ireland’s largest treehouse and lots more.

The stunning gardens at Birr Castle are home to unending botanical marvels with an abundance of exotic flora to be found throughout, along with feats of scientific and engineering wonder for all to view and enjoy.

Explore the gardens which are home to the Great Telescope, once the largest in the world, created by the Third Earl of Rosse in the 1840’s. Don’t miss Ireland’s largest treehouse adventure area with treehouse, sandpits, bouncy pillow and Hobbit Hut.

The award-winning formal gardens, surrounded by the hornbeam cloister walk, proudly houses the world’s tallest box hedges along with plants exclusive to Birr Castle. The 120 acres of gardens house an impressive worldwide plant collection of rare species from around the world, including over 40 champion trees of the British Isles.

The historic Science Centre transports visitors back to a time when Birr Castle was a hub of scientific discovery and innovation. The interactive galleries reveal the wonders of early photography, engineering and astronomy.

The castle, which has been a family home since 1620, opens its doors during the summer months for guided tours, offering visitors the chance to visit this private residence.

No trip to the gardens would be complete without visiting the Discovery Gift Shop or Courtyard Café.

Highlights include:
  • Award-winning gardens, housing the world’s tallest box hedges and rare plant life
  • The Great Birr Telescope - once the largest in the world
  • Historic Science Centre
  • Guided summer tours of Birr Castle
  • The Treehouse Adventure area featuring Ireland’s largest treehouse & more

Visitor Information

Open Year Round

March 16 to October 31
Daily 09:00 - 18:00

November 1 to March 15
Daily 10:00 - 16:00

Contact Details

Birr Castle Gardens and Science Centre
Rosse Row, Birr, Co. Offaly

T: +353 (0) 57 912 0336

Closed: December 25, 26 and January 1

Last admission:  1 hour before closing 

Approx. visit duration: A minimum of 1.5 to 2 hours


Admission Prices 2015/2016

Adult: €9.00
Senior (aged 65+): €7.50
Student (with valid ID): €7.50
Child (aged 5-12): €5.00
Toddler (aged 0-4): Free
Family (2 adults & 2 children): €25.00

(General ticket exclusions apply for special event dates)


Other Useful Information

Free leaflets and site map available in English, French, German, Spanish and Mandarin.

Café/ tearoom open April to September.

Gift shop selling souvenirs and gift items. 

Car and coach parking available off-site (nearby). 

Gardens and Science Centre are partially wheelchair accessible with accessible toilets. The Castle tours are not accessible.

Group rates available (minimum 10 people). Pre-booking required. 

Map Location

Located in the centre of Birr town, Birr Castle is within 90 minutes’ drive of most major Irish cities.

 Birr Castle Gardens and Science Centre    Nearby Attractions

Best Ticket Prices

Birr Castle Gardens and Science Centre



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Tickets valid for 365 days from purchase

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and special rates for seniors, students, kids & families.

Group Enquiry?

If you have a group enquiry for 10 or more people, you can contact us here.