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Date(s) - Sunday 24 Jul 2022
2:30 pm - 3:30 pm

The Great Barn, Harmondsworth Barn


Explore this medieval barn on the former Manor Farm in the village of Harmondsworth, in the London Borough of Hillingdon. The Great Barn dates back to 1426 and is the architectural gem of the Colne Valley Regional Park.

Enjoy a guided tour and talk on Harmondsworth Great Barn and take a look around the historic village with a local expert: Justine, a Friend of the Great Barn of Harmondsworth. Follow on with an optional 2 mile walk on good surfaces to Harmondsworth Moor Country Park and return in the company of one of the expert country park rangers.

Rescued by English Heritage after years of neglect, this Grade I listed barn ranks alongside the Houses of Parliament and Westminster Abbey for its exceptional architectural and historic interest.

It was dubbed the “Cathedral of Middlesex” by Sir John Betjeman.

Built in 1426 by Winchester College as part of its manor farm at Harmondsworth, the oak-framed barn is an outstanding example of medieval carpentry and contains one of the most intact interiors of its era. At nearly 60 metres long, 12 metres wide and 11 metres tall, with 13 massive oak trusses holding up the roof, both its size and aisles evoke the space and shape of a cathedral.

Managed by the Friends of the Great Barn at Harmondsworth.

Free parking available on site.

Plus, receive a free copy of our Colne Valley Trail pack when you come on one of our guided walks during the Festival!

All welcome. See below for how to book.

You could make an afternoon if it by starting off with the Guided Walk of Harmondsworth Moor which is from 12:00-2:00pm the same day.

Click here to see more information about the Colne Valley Festival Fortnight 2022 including a full schedule of events from July 24th to August 6th.

Booking Instructions

Please pre-book if you wish to attend. Please click on the link here to reserve your space.

If you’re unable to access Eventbrite please contact us at [email protected]

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