Loading Events

« All Events

  • This event has passed.

The Great Barn at Harmondsworth

August 11 @ 10:00 am - 5:00 pm


Visit this jewel of medieval architecture, before the picturesque village of Harmondsworth is flattened by Heathrow’s Third Runway!

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, the barn is open on selected days throughout the year. From May to September it is open every second and fourth Sunday of the month 10am-5pm.

The Great Barn, Manor Court, High Street, Harmondsworth UB7 0AQ

Nearest train station: West Drayton – 2 miles

Bus routes: TfL U3 and 350

Free parking

Further information at English Heritage


August 11
10:00 am - 5:00 pm


English Heritage


The Great Barn
Manor Court, High Street
Harmondsworth, Middlesex UB7 0AQ United Kingdom
+ Google Map