Baarle-Hertog: How One Town Ended Up With 30 International Borders

Baarle-Hertog is a small Belgian town located inside the Netherlands, right on the border with the Dutch town of Baarle-Nassau. On a map, it looks almost like a mistake. Instead of one clean national boundary, the area is divided into dozens of separate Belgian and Dutch enclaves, all tangled together.

In total, there are over 30 international borders running through the town — cutting across streets, sidewalks, shops, and even individual houses. Some buildings are split between two countries. In a few cases, the border runs directly through someone’s front door. This isn’t a tourist gimmick or a modern political stunt. It’s the result of medieval land deals that were never fully cleaned up.

The Medieval Origins of the Borders

The strange borders of Baarle date back to the Middle Ages, when land ownership mattered more than clear national boundaries. In the 12th and 13th centuries, local lords, dukes, and feudal rulers traded plots of land through treaties, marriages, and sales.

One of the key agreements was between the Duke of Brabant (whose territory later became part of Belgium) and the Lord of Breda (whose land became Dutch). Instead of exchanging whole regions, they traded specific parcels of land, many of them scattered and non-contiguous.

At the time, this wasn’t a problem. No one imagined modern nation-states with customs laws, police jurisdictions, or tax systems. Land was land. Who governed it only mattered locally. Centuries later, those vague medieval agreements became a legal nightmare.

How Enclaves Turned Into International Borders

When Belgium became independent from the Netherlands in 1830, those old land arrangements suddenly mattered a lot. The scattered parcels owned by the Duke of Brabant became Belgian territory, even though they were surrounded by the Netherlands.

This created 22 Belgian enclaves (Baarle-Hertog) inside Dutch territory, along with several smaller Dutch counter-enclaves inside the Belgian ones. Each enclave is legally its own piece of Belgium, complete with its own laws, taxes, and administration.

Instead of simplifying the situation, both countries eventually agreed to respect the historical borders exactly as they were. By the 20th century, the borders were officially surveyed and fixed in place — odd shapes and all.

Borders Through Houses, Shops, and Cafés

One of the most unusual features of Baarle-Hertog is how the borders cut through buildings. In some houses, the living room is in Belgium while the kitchen is in the Netherlands. In restaurants, one side of the dining room may be in a different country than the other. To determine which country a building belongs to, officials use a simple rule: the nationality is based on where the front door is located. Borders are marked on the ground with white crosses and metal studs, making them easy to follow as they zigzag through streets and buildings.

Different Laws, Same Street

Belgium and the Netherlands have different laws — and in Baarle-Hertog, that matters at a very small scale. Historically, things like tax rates, business regulations, alcohol laws, and opening hours differed between the two countries. At times, this led to strange situations where a shop would place its entrance on the Belgian side to take advantage of more favorable laws.

During COVID-19 lockdowns, the border became especially visible. Cafés on one side of the street were closed, while those just a few steps away, technically in another country, could remain open. Emergency services are also divided. Police, fire departments, and municipal services respond based on which side of the border an incident occurs on, even if it’s within the same building.

How the Town Actually Functions

Despite how chaotic it looks on a map, Baarle-Hertog functions surprisingly smoothly. Belgian and Dutch authorities cooperate closely. Residents are used to navigating dual systems. Most people speak Dutch, regardless of which side they live on, and daily life is largely seamless.

Today, the borders are part of the town’s identity. Baarle-Hertog has become a popular tourist destination precisely because of its absurd geography. Local businesses benefit from this curiosity, and the town actively highlights its borders rather than hiding them. What once caused legal confusion now brings steady tourism and international attention.