Heathrow expansion ‘is threat to England’s largest surviving medieval barn’

Heathrow expansion plans are threatening the survival of England's largest surviving medieval barn, the 600-year-old New Barn at Harmondsworth. Campaigners warn that the vibrations from aircraft taking off and landing could cause significant damage to the barn's structure. This is a concern because the New Barn is a remarkable example of medieval architecture and a valuable piece of England's cultural heritage. If the Heathrow expansion goes ahead, it could result in the loss of a unique historical landmark.

Why it matters

The expansion of Heathrow airport may cause damage to a historic medieval barn. This could lead to a loss of cultural heritage, but it is unlikely to have a significant impact on the broader market.

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• Heathrow says need for expansion ‘clear’ as it loses title of Europe’s busiest airport The Guardian · 2026-08-11

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