The Treehouse

Just outside of The Garden’s perimiter wall is perhaps the most surprising and exciting of all the surprises and excitements offered by The Alnwick Garden – the largest wooden treehouse in the world, winner of the Newcastle Journal Landmark Retail and Leisure Award 2005 and the Local Authority BUilding Control 2007 Award for innovatory disability access.


Built around 16 mature lime trees, which grow through and into the building The Treehouse is a combination of Siberian larch, Scandinavian redwood, Canadian ceder and Scots and English pine, all from sustainable sources.

The Alnwick Garden Opening Hours

* Please note that the below times are for The Alnwick Garden daytime opening hours only - Halloween evening events, The Winter Light Trail and The Treehouse are all subject to individual opening hours, which can be found on the relevant pages on our website *

Please note that outside of  Northumberland school holidays we will be closed Tuesdays and Wednesdays as of 1st November 2021 – 31st March 2022 (with the exception of evenings during the light trail - please see Christmas page for further details)

1st – 28th November 2021

10:00 – 16:00 (Last Admission 15:00)

29th November 2021 – 3rd January 2022
10:00 – 15:30 (Last Admission 14:30)

CLOSED Christmas Day, Boxing Day (open Boxing Day evening for light trail)

Tuesday 4th January 2022 – Thursday 3rd February 2022
CLOSED for essential maintenance

4th February 2022 – 31st March 2022
10:00 – 16:00 (Last Admission 15:00)