The Secret in the Basement Wall: Gold Treasure Worth 9 Million Euros Discovered in Belgium

Isla Chisholm
Posted August 14, 2026 · 1 views
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The Secret in the Basement Wall: Gold Treasure Worth 9 Million Euros Discovered in Belgium
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An ordinary day at a construction site in the small Belgian town of Sint-Gillis-Dendermonde turned into an event that made news headlines around the world. During renovation work in the basement of a historic building, construction workers stumbled upon a chest hidden inside a wall, filled with gold bars and coins. The value of the discovered deposit is estimated at nearly 9 million euros. The discovery has not only sparked a wave of speculation regarding the origin of the fortune, but has also triggered a complex legal procedure involving millions of euros and a five-year wait for the rightful owner.

The incident occurred in Sint-Gillis-Dendermonde, a town located in the province of East Flanders, Belgium. A construction crew from the company De Brand was carrying out earthworks and demolition in the basement of a building scheduled for a major overhaul. The workers' goal was to lay new sewage pipes and reinforce the foundations.

The Secret in the Basement Wall: Gold Treasure Worth 9 Million Euros Discovered in Belgium
Local police shared images of the hoard, discovered earlier this week

While drilling and breaking through a section of a load-bearing wall in the basement, an 18-year-old worker named Kobe noticed shiny objects emerging from the rubble. As he later admitted in an interview with the media, he initially thought he was dealing with ordinary 1-euro coins left there by accident. However, further investigation quickly disproved that assumption—after removing subsequent layers of brick and plaster, the workers saw a leather-and-wooden chest embedded directly into the wall's structure.

After carefully opening the compartment, a scene straight out of an adventure novel was revealed to the workers: dozens of gleaming gold bars stamped with serial numbers, gold nuggets, and thousands of vintage coins.

The site manager, Mario, immediately halted work in the basement and notified the property owner as well as local authorities. As he emphasized in statements to the press, hiding such a find or attempting to keep it without reporting it was completely out of the question, both due to the immense legal risk and the sheer scale of the discovery itself.

Contents of the Treasure: Bars, Nuggets, and Thousands of Coins

An initial inspection and inventory conducted under police supervision revealed the extraordinary richness and variety of the hidden deposit:

  • Over 40 gold bars: Each bears individual serial numbers and refinery stamps, which may help determine the casting date and distribution path during the investigation.
  • At least 4,000 gold coins: Among them are numismatic items from the 19th and early 20th centuries, including gold sovereigns and circulation coins from various European countries.
  • Gold nuggets and lumps: Indicating that the person accumulating the wealth invested in the precious metal in various forms.
The Secret in the Basement Wall: Gold Treasure Worth 9 Million Euros Discovered in Belgium
Local police shared images of the hoard, discovered earlier this week

The total weight of the precious metal reaches several dozen kilograms, and its total market value—taking into account both the spot price of gold on exchanges and the numismatic value of the rare coins—has been estimated by experts at around 9 million euros.

Who Was the Mysterious Owner?

The building in which the extraordinary discovery was made currently belongs to the non-profit organization CAW Oost-Vlaanderen (East Flanders Social Work Center). The facility was undergoing renovations to serve as office space, social housing, and workshops for those in need.

However, the history of the property itself sheds some light on the potential origin of the fortune. Archival documents show that at the beginning of the 20th century—around 1900—the house belonged to a wealthy local brewer. The brewing industry in Flanders was highly lucrative at the time, and local entrepreneurs often sought safe methods to invest their capital.

Experts and historians investigating the case have put forward several main hypotheses regarding the reasons for walling up the chest:

  • Fleeing War Operations: Belgium became a scene of heavy fighting during World War I and World War II. In the face of an advancing front or German occupation, wealthy citizens en masse hid their savings in walls, floors, and basements, fearing confiscation or looting.
  • Protection Against Financial Crisis and Taxes: In the interwar period and during the Great Depression, investing capital in gold and physically hiding it was a popular practice to protect wealth against hyperinflation and currency reforms.
  • A Criminal Connection: Investigators also do not rule out the possibility that the deposit originates from illegal sources, wartime plunder, or criminal activity from the mid-20th century, and the person who hid it died without passing on the secret of the stash to anyone.

Police Action and Securing the Assets

News of the treasure's discovery spread rapidly, causing quite a stir among the local community and treasure hunters alike. To prevent any break-in attempts at the construction site, local police in Dendermonde secured the surrounding area.

The construction site was placed under 24-hour surveillance, and the treasure itself was transported under strict escort to a secure vault in Brussels, where it remains under the supervision of federal authorities and the public prosecutor's office.

The event was also met with a humorous reaction from the officers themselves—Dendermonde police temporarily changed their profile picture on their official Facebook account to a graphic of a gold coin. At the same time, they issued a firm warning to residents and internet users, appealing to them not to visit the construction site, which was thoroughly searched by forensics technicians and metal detectors.

Who Will Get the 9 Million Euros?

The discovery of the deposit triggered precisely defined procedures under the Belgian Civil Code (Code Civil). Law in Belgium clearly regulates the matter of finds and so-called hidden treasure (trésor).

Five Years of Uncertainty (1,823 Days)

According to applicable regulations, once the discovery of hidden assets is officially reported, a five-year grace period (exactly 1,823 days) begins. During this time, potential heirs or legal owners have the right to submit their claims to the prosecutor's office. However, they must present solid, irrefutable evidence—ownership documents, bar serial numbers, account books, or wills confirming that the gold belonged to their ancestors.

What If No One Comes Forward?

If no rightful owner is identified within 5 years and the investigation rules out a criminal origin of the gold, the rule for dividing the find comes into effect:

  • 50% of the treasure's value goes to the person or company that physically made the discovery (in this case, the workers / construction company De Brand).
  • 50% of the treasure's value goes to the owner of the property where the treasure was located (the charity organization CAW Oost-Vlaanderen).

This means that if no one proves legal rights to the deposit, the organization assisting those in need and the young workers from the construction company could split the sum of approximately 9 million euros between them. For the charity, this would mean a massive financial boost, allowing them to fund dozens of social projects in Flanders.

The Clock Has Started Ticking

The discovery of the gold treasure in Sint-Gillis-Dendermonde is one of the largest and most spectacular archaeological and material surprises in modern Belgian history. It serves as a reminder that secrets from the turbulent history of the 20th century are still hidden beneath the floors and within the walls of old European homes.

Now, the eyes of the public and investigators are on Brussels, where experts and historians are examining the serial numbers of the bars and attempting to reconstruct the fate of the building's former owner. The countdown will end in 2031—until then, the 9 million euros will remain in government custody, and the answer to who will ultimately receive this windfall remains open.

Source: BBC

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