Harmondsworth Great Barn: England’s Medieval Timber Masterpiece
Explore England’s largest medieval timber barn, a majestic oak masterpiece preserving centuries of rural heritage near Heathrow.
Harmondsworth Great Barn, a Grade I listed medieval barn near Heathrow Airport, is England’s largest timber-framed building. Built in 1426 by Winchester College, it showcases exceptional medieval carpentry with 13 massive oak trusses and an interior evoking a cathedral’s grandeur. Open to the public seasonally, it stands as a remarkable symbol of rural heritage and craftsmanship.
A brief summary to Harmondsworth Barn
- The Great Barn, Manor Court, Harmondsworth, UB7 0AQ, GB
- +443703331181
- Visit website
- Duration: 1 to 2 hours
- Free
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Outdoor
- Mobile reception: 4 out of 5
Local tips
- Visit on the second or fourth Sunday from April to October for free public access and volunteer-led insights.
- Wear flat, comfortable shoes due to the barn’s uneven floor.
- Plan for no onsite facilities; nearby pubs and the village church offer limited amenities.
- The barn is wheelchair accessible but check for any seasonal opening changes before visiting.
For the on-the-go comforts that matter to you
- Seating Areas
- Trash Bins
- Information Boards
Getting There
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Bus
Take bus U3 or 350 to Harmondsworth village; from the stop, it is a 10-15 minute walk on flat terrain to the barn entrance. Buses run hourly with a single fare around £2.50.
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Car
Drive to Harmondsworth village via local roads; free parking is available at the English Heritage car park behind the barn. Travel time from central London is approximately 40-60 minutes depending on traffic.
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Walking
From Harmondsworth village center, enjoy a gentle 10-minute walk on paved and flat surfaces to the barn, suitable for wheelchair users but wear flat shoes due to some uneven floors inside.
Harmondsworth Barn location weather suitability
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Any Weather
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Mild Temperatures
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Rain / Wet Weather
Discover more about Harmondsworth Barn
Architectural Grandeur of a Medieval Marvel
Harmondsworth Great Barn is an extraordinary example of medieval carpentry and architecture, constructed almost entirely from oak in 1426. Measuring approximately 192 feet long, 37 feet wide, and soaring to 39 feet high, it is the largest timber-framed barn in England. The barn’s interior is supported by 13 massive oak trusses, creating a vast, cathedral-like space that evokes awe and admiration. The exterior is clad in weatherboarding beneath a hipped tiled roof, maintaining its historic character. Remarkably, over 95% of the original timber structure remains intact, including visible carpenters’ marks that speak to the craftsmanship of its builders.Historical Roots and Enduring Legacy
The barn was built as part of Manor Farm by Winchester College, founded by William of Wykeham, Bishop of Winchester, who acquired the manor in 1391. It served as a vital agricultural storage building for centuries, reflecting the dominance of rural economy in medieval Middlesex. The barn’s history is intertwined with the village of Harmondsworth, which dates back to before the Norman Conquest. Despite changes over time, including the dismantling of one wing in the 18th century, the barn remains a testament to the skill and investment in agricultural infrastructure during the medieval period.Preservation and Public Engagement
Today, the barn is managed by English Heritage with the support of the Friends of the Great Barn at Harmondsworth, a dedicated volunteer group. It is open to the public for free on the second and fourth Sundays from April to October, as well as during Heritage Open Days. The barn hosts displays that illustrate its construction, agricultural history, and local wildlife, offering visitors an immersive experience into the past. While it has no onsite facilities, nearby pubs and the village church provide amenities. Accessibility is supported with wheelchair access, though the uneven floor suggests flat shoes for comfort.Setting and Surroundings
Located in the village of Harmondsworth, just northwest of Heathrow Airport, the barn sits amid fields and historic village landmarks such as St Mary’s Church. The surrounding area offers peaceful rural vistas and walking opportunities, including routes across nearby Harmondsworth Moor. The barn’s proximity to the airport highlights an ongoing tension between heritage preservation and modern development, with the barn protected from the airport’s expansion plans.Visitor Experience and Atmosphere
Visitors to Harmondsworth Great Barn can expect a tranquil and scenic environment rich in cultural heritage. The barn’s vast interior space and towering oak beams create a unique atmosphere reminiscent of a grand medieval cathedral. Volunteer guides provide insights into the barn’s history and construction, enhancing the educational experience. The site is ideal for those interested in medieval architecture, rural history, and traditional craftsmanship, offering a rare glimpse into England’s agricultural past.Future and Conservation Challenges
The Great Barn’s preservation is a priority amid threats from nearby Heathrow Airport’s development plans. Efforts by English Heritage and local volunteers ensure ongoing maintenance and public access. The barn stands as a symbol of the rural economy’s historical importance and the extraordinary skill of medieval carpenters. Its survival allows future generations to appreciate a remarkable piece of England’s architectural and agricultural heritage.Iconic landmarks you can’t miss
King John's Palace
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Courtyard London Heathrow Airport
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St Anne's Well
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Freddie Mercury Blue Plaque
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Staines War Memorial
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Windsor Castle Quadrangle
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King Edward III Tower
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Mary Delany and Fanny Burney blue plaque
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Kempton Steam Museum
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Windsor Martyrs' Memorial
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Harry Greenwood Blue Plaque
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The Crooked House of Windsor
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Windsor & Royal Borough Museum
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Queen Charlotte Street
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Eton
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Eton College: A centuries-old bastion of elite British education nestled beside historic Windsor Castle.
Unmissable attractions to see
Harmondsworth Moor
0.7 km
Discover Harmondsworth Moor, a serene green oasis near Heathrow, blending rich wildlife habitats, historic charm, and tranquil walking trails.
Longford Pump
0.9 km
Discover the historic charm of Longford Pump, a tranquil landmark reflecting West Drayton’s rich heritage and community spirit.
Club Aspire Lounge at Heathrow Terminal 5
2.2 km
Experience tranquility and comfort at Club Aspire Lounge in Heathrow Terminal 5, where luxury meets convenience for travelers.
Heathrow Airport
3.0 km
The UK’s largest international airport, Heathrow connects London to the world with modern terminals, extensive facilities, and seamless transport links.
Cranford Countryside Park Country Park
4.4 km
Explore 144 acres of historic woodlands, riverside trails, and heritage landmarks in this tranquil West London countryside park.
Myrtle Avenue Viewing Area
4.6 km
Experience thrilling close-up views of Heathrow’s aircraft landings and takeoffs in a spacious, family-friendly green space.
Barra Hall Park
5.0 km
Historic manor grounds transformed into a vibrant Hayes park with gardens, playgrounds, sports, and cultural events year-round.
Hounslow Urban Farm
5.5 km
Discover London’s largest community farm in Feltham, where vibrant animal encounters and family fun await across 29 acres of urban green space.
Battle of Britain Bunker
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Explore the secret underground command centre that coordinated Britain’s air defence during WWII’s Battle of Britain.
Bedfont Lakes Country Park
5.9 km
A serene 73-hectare country park in Feltham offering rich wildlife, lakes, woodlands, and family-friendly facilities on London’s western edge.
West London Film Studios
6.1 km
Premier London film studio complex hosting Oscar-winning productions across two purpose-built sites.
Shortwood Common
6.1 km
A tranquil green space in Staines with open fields, grazing livestock, and a peaceful pond—perfect for relaxation and nature walks.
The SkyEx Community Stadium
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The Pavilions
6.3 km
A practical and welcoming shopping centre in Uxbridge blending high street brands with a unique indoor market experience.
Fassnidge Park
6.3 km
A historic Edwardian park in Uxbridge offering gardens, sports, playgrounds, and a welcoming café in a tranquil urban setting.
Essential places to dine
Madeirinhas
1.9 km
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Three Magpies
2.2 km
A cozy Heathrow pub serving hearty classics and a wide drink selection in a friendly, family- and dog-friendly setting.
The Pheasant Inn & Restaurant Heathrow (over 18s only)
2.8 km
A refined adult-only pub and restaurant near Heathrow offering generous British fare, excellent gluten-free options, and warm hospitality.
Plaza Premium Lounge (Departures, Terminal 2) London Heathrow Airport (LHR)
3.0 km
A stylish and comfortable retreat in Heathrow Terminal 2 offering quality food, drinks, and amenities for all travelers.
Plaza Premium Lounge London Heathrow (Departures, Terminal 4)
3.9 km
A spacious, modern lounge at Heathrow Terminal 4 offering diverse dining, apron views, and comfortable amenities for travelers seeking relaxation before departure.
Tamara Lounge
5.0 km
A vibrant fusion of Indian, Chinese, and Lebanese flavors with lively nightlife and shisha lounge in the heart of Uxbridge.
The Bell On The Green - Pub, Bar and Indian Restaurant
5.2 km
A vibrant Feltham pub blending classic British charm with authentic Indian flavors and a welcoming beer garden.
The Runnymede on Thames Hotel and Spa
7.0 km
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Le Taj
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Humble Thali
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The Loch & The Tyne by Adam Handling Old Windsor
8.5 km
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King & Lamb Restaurant
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Elegant British dining in a historic country house setting with superb roasts, vegan options, and a tranquil garden atmosphere.
The Boatman
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Windsor’s charming riverside gastropub offering classic British fare, scenic Thames views, and a relaxing atmosphere by the water.
Clarence Brasserie & Tea Room
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The Queen Charlotte
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A welcoming British pub near Windsor Castle, offering hearty roasts, local ales, and cozy charm in the heart of Windsor.
Markets, malls and hidden boutiques
Louis Vuitton Heathrow T3
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Experience timeless luxury and impeccable style at Louis Vuitton Heathrow Terminal 3, your elegant travel companion.
Harrods
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Experience the pinnacle of luxury shopping and festive magic at Harrods, London’s iconic department store in Knightsbridge.
The Discount Store
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Discover unbeatable prices and a wide variety of products at The Discount Store in Hayes, a must-visit destination for budget-savvy travelers.
Unique Gifts
5.9 km
Explore Unique Gifts in Slough for one-of-a-kind treasures that capture the essence of local culture and creativity.
Staines Market
6.6 km
Experience the vibrant tradition of Staines Market, where fresh local produce and diverse stalls bring community spirit to Staines High Street.
Neelam Post Office & Convenience
6.7 km
Experience the best of convenience shopping in Uxbridge at Neelam Post Office & Convenience, offering fresh produce, postal services, and more.
Always & Forever - Wedding Dresses London
8.6 km
Premier family-run bridal boutique in Hounslow offering over 700 gowns and personalized, pressure-free service for your perfect wedding dress.
Windsor Gifts & Souvenirs
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Discover charming and affordable keepsakes at Windsor Gifts & Souvenirs, your perfect stop for memorable treasures near Windsor Castle.
Great British Gifts
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Discover authentic British souvenirs and artisan treasures just steps from Windsor Castle at Great British Gifts.
House Of Gifts
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Discover charming Windsor souvenirs and gifts at House Of Gifts, your friendly stop near the castle for memorable keepsakes and affordable treasures.
The Edinburgh Woollen Mill
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Middle Ward Shop
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Wellington 1895 Antiques Windsor
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King & Queen Gift Shop
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A Little Present
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Essential bars & hidden hideouts
The White Hart Harlington
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The Music Box
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Green Man
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The Queen's Head, Cranford
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Turtle Bay Staines
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The Kings Arms
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The Two Brewers
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The Royal Windsor
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The Cobbles
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The Corner House
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The Prince Harry
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The Carpenters Arms
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The Horse & Groom
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The Shambles
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La planchette
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Nightclubs & after hour spots
Labyrinth Nightclub Windsor
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The Scotch
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The Boom
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Pink Gentleman's Club.
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Sophisticated adult entertainment with exclusive VIP rooms and topless pole shows in the heart of Windsor’s nightlife scene.
The Music & Words Club
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Winkers Nightclub
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Lost In Disco
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Le Fez
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Ricco London
18.7 km
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Electric House
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The Duke of Wellington
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Subteranian
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Popworld Watford
19.5 km
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Canvas Bar & Nightclub
19.5 km
Experience vibrant nights of music, dancing, and cocktails at Canvas Bar & Nightclub in the heart of Watford’s High Street.
The Globe
19.6 km
Traditional London pub by day, lively late‑night bar and club by night—large, hireable rooms and a warm, characterful interior.
For the vibe & atmosphere seeker
- Tranquil
- Scenic
- Cultural Heritage
- Relaxing
For the design and aesthetic lover
- Rustic Designs
- Vintage Styles
For the architecture buff
- Historic
- Landmarks
- Heritage Neighborhoods
For the view chaser and sunset hunter
- Iconic Views
For the social media creator & influencer
- Instagrammable
- Photo Spots
- Architectural Shots
For the eco-conscious traveler
- Protected Area
- Public-Transport Accessible
- Locally Managed
For the kind of experience you’re after
- Cultural Heritage
- Photowalk
- Day Trip
- Weekend Getaway
For how adventurous you want the journey to be
- Easy Access
Location Audience
- Family Friendly
- Senior Friendly
- Child Friendly
- Wheelchair Access
- Solo Friendly
- Couple Friendly
- Vegetarian Friendly
