The Evolution of Guédelon Castle – A 13th-Century Castle In the Modern Era

Photo Credit: Rolf Krahl / Wikimedia Commons CC BY 4.0
Photo Credit: Rolf Krahl / Wikimedia Commons CC BY 4.0

In east-central France, just a two-hour drive south of Paris, a structure is being built that’s unlike any other. Guédelon Castle is, as its name suggests, a castle – but that’s not what makes it special. The reason this project has caught the attention of the world is its focuse on techniques that haven’t been used in centuries, making it both a daunting and rewarding endeavor.

Here’s how the project has progressed over the years.

What is Guédelon Castle?

Three construction workers standing among bricks and pieces of stone
Photo Credit: Ronny Siegel / Wikimedia Commons CC BY 2.0

Guédelon Castle is a 13th-century medieval castle under construction in the woods near Treigny, in Burgundy, France. You might be wondering, how can a castle from the Middle Ages be built in the modern era? Well, that’s exactly what makes it so special.

The concept of Guédelon Castle dates back to 1979, when French entrepreneur Michael Guyot purchased what remained of an old château. While restoring the property, he was informed that the structure had been built atop medieval foundations, prompting him to switch gears and, instead, build a castle. After conversing with the French government and raising €400,000, he was able to begin work on the project in 1997.

Instead of approaching the effort from a modern lens, Guyot decided that Guédelon Castle would be built using only materials, techniques and tools that were accessible to those living in the Middle Ages. What’s more, he modeled it after those developed during the reign of Philip II, who ruled as the King of France from 1180-1223.

As of 2023, Guédelon Castle remains under construction. In 1998, it was opened to the public, who are free to visit the site, learn about historic building techniques and watch a piece of history being built right before their eyes. It’s typically open between April and November each year, and is said to attract 300,000 visitors annually.


Tourists walking around a worksite dug out in the middle of a forest
Photo Credit: Calips / Wikimedia Commons CC BY-SA 1.0

A host of individuals have been brought together to help construct Guédelon Castle, including stonemasons, quarrymen, tilers, carpenter-joiners, blacksmiths, rope makers and carters.


Tourists walking around the site at Guédelon Castle
Photo Credit: Xavier ROSSI / Gamma-Rapho / Getty Images

As with most construction projects, work occurs from spring to autumn in what’s described as an “open-air laboratory.” Their work is regularly observed by visitors to Guédelon Castle, who get to watch in real time how individuals from the Middle Ages constructed similar structures.


Brick wall under construction
Photo Credit: Andreas Wünsch / Wikimedia Commons CC BY-SA 2.0 de

Speaking about the project back in 2003, Anne Baud, archaeologist and senior lecturer at Lyon University, said, “My normal work consists of carrying out research on existing ruins…In fact we mentally deconstruct the wall that we are studying. This can take us so far, but it remains an intellectual activity. Today, Guédelon is helping us put ideas and research to the test.”


Workers walking around the construction site at Guédelon Castle
Photo Credit: Christophe.Finot / Wikimedia Commons CC BY-SA 3.0

Guédelon Castle is being built in an abandoned quarry, as the location has ample amounts of unused stone and is close to a pond. The first ceremonial stone was laid on June 20, 1997, with construction properly getting underway just over a month later.


Tourists walking around the construction site at Guédelon Castle
Photo Credit: Tristos / Wikimedia Commons CC BY 2.5

There’s another reason why Guédelon Castle was built in the abandoned quarry, and it relates back to the restraints of those living during the Middle Ages. Transporting construction supplies and materials was difficult and costly back then, so the abundance of rocks and other necessary items has meant the process has been infinitely easier than if the castle had been built elsewhere.


Tourists walking along the exterior of Guédelon Castle
Photo Credit: Vincent Anciaux / Wikimedia Commons CC BY-SA 3.0

There’s something special about Guédelon Castle and the work going on there. Speaking with NPR, Sarah Preston, a guide and communications director, said, “This is a place you experience with all your senses. As soon as you walk onto the site you smell the woodsmoke. There’s something so evocative about these sites and sounds.”


People standing around the exterior of Guédelon Castle
Photo Credit: LeMorvandiau / Wikimedia Commons CC BY-SA 3.0

It’s not only the tools and techniques from the time period that they’re using – those working on the site also dress for the period, meaning visitors to Guédelon Castle are given a completely immersive experience.


Tourists walking around the site at Guédelon Castle
Photo Credit: Wikimedia Commons CC BY-SA 3.0

How does the team know the proper techniques to use? Well, they collected information from several sources, including field trips to and surveys of castles from the same time period; contemporary iconography, including illuminated manuscripts, medieval-era building contracts and stained-glass windows; and modern scientific sources, such as archaeological records.


Exterior of Guédelon Castle
Photo Credit: JEFF PACHOUD / AFP / Getty Images

Along with offering numerous tourism opportunities, Guédelon Castle allows students to develop a new skill. Those looking for placements can apply and learn the likes of banker masonry, carpentry and fixer masonry. If physical labor isn’t your speed, the site also offers lessons on how to be a tour guide.


Guédelon Castle poking through the trees
Photo Credit: Ronny Siegel / Wikimedia Commons CC BY 2.0

Speaking about the experience, head architect Jacques Moulin said, “The Guédelon building site has provided me with a unique experience in my role as head architect. If I want accurate restorations, I need to use bulding techniques which even specialised companies do not master. We are confronted by a paradox: rebuild the old with radically modern methods.”


Exterior of Guédelon Castle
Photo Credit: Godong / Universal Images Group / Getty Images

Guédelon Castle doesn’t just feature the main structure, but also a medieval hydraulic water mill. As with the rest of the property, it was constructed by the team’s carpenters, woodsmen, blacksmiths and stonemasons, who worked alongside archaeologists with the French National Institute for Preventative Archaeological Research (INRAP).

The mill itself is actually based upon the design of a water mill found at Thevray, in Jura, which was dated to the 12 century.


Tourists standing around the exterior of Guédelon Castle
Photo Credit: simka2008 / Wikimedia Commons CC BY 2.0

Want a taste of what food was like in the Middles Ages? Guédelon Castle has an in-house breadmaker, who uses flour that’s ground on-site and bakes the loaves in the property’s bread oven.


Tourists walking around the construction site at Guédelon Castle
Photo Credit: PHILIPPE DESMAZES / AFP / Getty Images

Interestingly, Guédelon Castle isn’t the only place where medieval building techniques are being used in France. The team tasked with restoring the Notre-Dame after the devastating 2019 fire have been using the methods honed by those involved in the castle’s construction.


Tourists walking around the construction site at Guédelon Castle
Photo Credit: Asmoth / Wikimedia Commons CC BY-SA 4.0

In 2014, Guédelon Castle was featured in the BBC Two documentary series, Secrets of the Castle. The show, hosted by Peter Ginn, Ruth Goodman and Tom Pinfold, called the project “the world’s biggest archaeological experiment.”


Exterior of Guédelon Castle
Photo Credit: Paul Hermans / Wikimedia Commons CC BY-SA 4.0

As can be expected, a number of historical artifacts have been unearthed during the construction process. Along with being interesting in and of themselves, these items provide an added look into the lives of those living in medieval Europe.


Exterior of Guédelon Castle
Photo Credit: Espirat / Wikimedia Commons CC BY-SA 4.0

Did you know Guédelon Castle is home to a trebuchet? It’s true! The medieval weapon is essentially a large catapult and was used to launch large projectiles at enemy forces during a siege. Its origins date back to the 4th century BC in China.


Wooden stairs and slats along the exterior of a brick wall
Photo Credit: Patrick OTER / Wikimedia Commons CC0 1.0

Just as interested parties can apply for placements at Guédelon Castle, visitors can also get involved! The site offers interactive workshops, meaning anyone who’s interested can get hands-on experience in the likes of carpentry and stone carving. It really offers a sense of just how different life was in the Middle Ages.


Exterior of Guédelon Castle
Photo Credit: DEA / ALBERT CEOLAN / Getty Images

Along with solely using techniques that are true to the time period, those involved in constructing Guédelon Castle have put an emphasis on making sure the work being done is ecologically sound and sustainable.


Exterior of Guédelon Castle
Photo Credit: Christophe.Finot / Wikimedia Commons CC BY-SA 3.0

As hinted at by the on-site breadmaking, Guédelon Castle grows a lot of its own food. However, just as with the techniques, they are limited to growing foods that were accessible at the time. As reported by All That’s Interesting, that means they don’t grow tomatoes or potatoes, as both foods hadn’t yet introduced to Europe from South America in the 13th century.


Exterior of Guédelon Castle
Photo Credit: Godong / Universal Images Group / Getty Images

As aforementioned, Guédelon Castle is located a few hours south of Paris. There’s also no forms of public transportation that service the area, meaning anyone interested in visiting needs to acquire a car – but we promise the visit is well worth it!


Rear exterior of Guédelon Castle
Photo Credit: FrDr / Wikimedia Commons CC BY-SA 4.0

More from us: History of Malbork Castle: From the Teutonic Knights to the Second World War

Overall, Guédelon Castle is a unique and interesting trip back in time, all while remaining in the modern era. If you’re ever in France and find yourself with a free day, it should definitely be among the sites you consider visiting.

Clare Fitzgerald

Clare Fitzgerald is a Writer and Editor with eight years of experience in the online content sphere. Graduating with a Bachelor of Arts from King’s University College at Western University, her portfolio includes coverage of digital media, current affairs, history and true crime.

Among her accomplishments are being the Founder of the true crime blog, Stories of the Unsolved, which garners between 400,000 and 500,000 views annually, and a contributor for John Lordan’s Seriously Mysterious podcast. Prior to its hiatus, she also served as the Head of Content for UK YouTube publication, TenEighty Magazine.

In her spare time, Clare likes to play Pokemon GO and re-watch Heartland over and over (and over) again. She’ll also rave about her three Maltese dogs whenever she gets the chance.

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