Definition
In South Korea, a cadastral map (*jijeokdo*) is an official public record where the government surveys land parcel by parcel to register legal boundaries, parcel numbers (*jibeon*), and designated land-use categories (*jimok*)—while forest lands are recorded on a separate forest cadastral map (*imyado*). Just as a government-issued civil registry verifies a citizen's identity, a cadastral map serves as the baseline document proving the official legal boundary of each individual parcel of land across the country.
How Does It Differ from Navigation Maps?
The portal maps or GPS navigation apps we use on smartphones are guides designed to help us find our way. While they clearly display building shapes and road layouts, they cannot show the legal boundaries of who owns which patch of ground.
In contrast, a cadastral map divides all land in South Korea like pieces of a giant jigsaw puzzle. Each divided parcel is called a *pilji*. Every parcel has its own unique identification number called a *jibeon*, along with a designated land-use category (*jimok*) showing whether it is a farm field, a residential building lot, or something else.
Even if there is a physical fence erected between your property and your neighbor's, the legal standard is, in principle, not the physical fence in front of your eyes, but the boundary lines drawn on the cadastral map. Exceptions such as surveying errors or long-term adverse possession do exist, so boundary disputes require professional surveying and legal counsel. Rather than a snapshot of real-world scenery, the map functions as an officially registered legal blueprint. Because many historical maps were drawn decades ago, some discrepancies with actual terrain exist, meaning precise boundaries must be verified through on-site surveying.
Digging Deeper: The Cadastral Map vs. the Real Estate Register
When exploring real estate in South Korea, you are often advised to examine both the real estate register (*deunggi-bu*) and the cadastral map (*jijeokdo*). These two documents have clearly divided legal roles. The real estate register primarily proves ownership rights and encumbrances—such as who holds the title and whether collateral mortgages (*geunjeodang*) are attached (mortgages display a maximum claim amount rather than the exact remaining debt).
On the other hand, cadastral records (*jijeok gongbu*), which include the cadastral map, primarily document physical land characteristics: where the land is located, its shape, intended use, and exact area. For physical land characteristics, the cadastral record is the official authority, whereas the real estate register governs ownership rights. Therefore, if the recorded land area differs between the two documents, the cadastral record takes precedence, and the real estate register must be amended to match it.
Cadastral maps also clearly state the exact scale of reduction. Drawn at fixed ratios such as 1:500 or 1:1,200, this scale allows you to estimate the land's actual size. Exact boundaries and surface areas are confirmed through boundary relocation surveys conducted by specialized agencies such as the Korea Land and Geospatial Informatix Corporation (LX).
Why Should You Check It First Before Buying Land or a Home?
Failing to check the cadastral map before building a country home or buying land can lead to severe losses. The most notable risk is buying a landlocked parcel (*maengji*). A landlocked parcel has no direct contact with any public road. Even if an unpaved road visibly crosses the terrain, if that road falls on someone else's private parcel according to the cadastral map, you cannot freely use it and must secure legal rights of way.
Furthermore, a yard you have used for decades might actually belong to your neighbor according to the cadastral map. Trees and fences can be misplaced by people at any time, but boundary lines registered in the national administrative network cannot be moved at will.
That is why, before signing a real estate contract, you should never rely solely on what you see on-site. The safest approach is to pull a cadastral map through government public service portals and verify that the actual shape of the land matches the official drawings.
Common misconceptions
The physical fence standing on the property always matches the boundary line on the cadastral map.
Fences can easily be built in the wrong spot by human error. In principle, legal property boundaries are judged by the government-certified cadastral map rather than physical fences on-site. However, legal exceptions can arise due to surveying errors or long-term adverse possession.
Where you meet it
Checking the cadastral map before building a house to confirm whether the plot connects to a public road, followed by verifying building code access requirements with local municipal authorities.
Commissioning a professional boundary survey based on the cadastral map when a dispute arises with a neighbor over fence placement.
In one sentence
A cadastral map is an official government record and land ID that surveys and registers a parcel's shape, number, designated use, and legal boundaries.