Différence entre le cadastre foncier et le cadastre : pourquoi les données ne correspondent-elles souvent pas

Imagine this scenario: you've found the perfect house, agreed on the price, hired a notary — and then it turns out that what's written in the cadastre doesn't match what's in the land registry.
The deal falls through, and you're left without a property and with a legal headache that can last for years.

Situations like these are not an exception in practice — they are surprisingly common on the Croatian real estate market.
The difference between the cadastre and the land registry is a fundamental problem that troubles buyers, sellers, and heirs. These are two separate systems that should theoretically speak of the same reality, but often speak of completely different things.

In short: the cadastre describes the physical reality of a plot — its shape, area, and purpose. The land registry, on the other hand, states who the legal owner is and whether there are any encumbrances or mortgages. Only a property registered in the land registry has full legal protection — the cadastre itself does not grant ownership.

The goal of a properly registered land as a concept is precisely to bridge this gap. The Joint Information System (ZIS) has proven to be a modern solution, which seeks to combine both registers into a single entity.

However, in order to understand why discrepancies arise, we first need to clearly distinguish what each of these systems actually measures — and who manages them.

Cadastre vs. Land Registry: Key Differences You Need to Understand

Most property buyers have heard of both terms, but few truly understand why they are two separate systems — and why this distinction can be crucial for your legal security.

Cadastre: A body that measures, not proves ownership

The cadastre is a record managed by the State Geodetic Administration (DGU). Its primary purpose is to record the physical properties of the land — shape, size, use, and position in space. When your name is written in the cadastre, there is a special term next to it: possessor. This means you are the person who uses the property or has registered it for tax purposes — but it does not mean you are the legal owner.

Land Registry: The only record that guarantees ownership

The land registry (zemljišna knjiga) is under the jurisdiction of municipal courts and is the only legal source that defines who owns a property. All real rights are also registered here — mortgages, easements, usufructs, and other encumbrances. Without registration in the land registry, legally speaking, you are not the owner, regardless of whether you have paid the purchase price.



Being registered in the cadastre does not make you the owner — it is only a record of who factually uses the property, not who legally owns it.

Why does this difference create problems?

This is precisely the core of the issue as to why the data in the cadastre and the land registry do not match. Both systems were created independently of each other and were not synchronized for a long time. Only with the introduction of systems like the Joint Information System (ZIS) have attempts been made to bridge this gap — but as we will see, the reasons for the discrepancies go much deeper into history and practice.

Why doesn't the data match? Three main causes of chaos

When it is discovered that the cadastre and the land registry show different data, the owner's first reaction is usually confusion — and then panic. However, this situation is not a random system error. The discrepancies are due to specific, deeply rooted reasons that are important to understand before you even start thinking about how to reconcile the cadastre and the land registry.

1. Historical legacy: Austro-Hungarian surveys meet modern geodesy

The foundations of today's cadastral system in Croatia were laid in the 19th century, during the Austro-Hungarian Monarchy. The land surveys at that time were made with the equipment and methodology available then — meaning that the areas of plots, boundaries, and shapes often differed significantly from the actual state. Modern geodetic measurements, which use satellite technology and digital tools, regularly reveal these differences. The result? A plot that was registered as 800 square meters in old books may measure 720 — or 860 today.

2. Generational neglect: Properties inherited "by word of mouth"

Inheritance without probate proceedings is one of the most common pitfalls in Croatian practice. Families have been transferring land and houses among themselves for decades — through sale, gift, or simply moving — without anyone initiating registration proceedings. The cadastre might have been updated due to tax obligations, but the land registry would remain frozen in the past, still registered to a long-deceased ancestor.



An unregistered property legally exists only for the tax administration — for everyone else, the owner on paper is someone who is no longer alive.

3. Systemic backlog: Taxes today, registration perhaps never

There is a time lag between updating the cadastre and updating the land registers, which can last for years. Changes in the cadastre are often made quickly because they are related to tax obligations, while registration in the land registry requires court proceedings, documents, and active owner involvement. Without this step, the two registers continue to live parallel lives — and each tells a different story about the same property.

Understanding these causes is only the first step. The real question is: what are the concrete consequences of this discrepancy — and how much can it cost you?

Dangers of Discrepancy: What You Risk with 'Disordered' Papers

Understanding why discrepancies occur between records is useful in itself — but the real motivation for solving the problem lies in the concrete risks that a mismatched cadastre and land registry pose to the everyday owner. And these risks are not insignificant.

The bank will say "no"

Financial institutions check the land registry extract with extreme care when approving mortgage loans. If the ownership list shows unclear ownership, encumbrances, or discrepancies with cadastral data, the loan application will be rejected — without exception. In practice, this means that a sale can fall apart at the last minute, and the seller is left with a property that is difficult to sell.

Principle of Public Trust: A hidden threat

This is perhaps the most difficult to understand, but also the most dangerous risk. The principle of public trust, guaranteed by the Land Registry Act, means that a third party who relies on the state of the land registry and buys a property in good faith can acquire legally valid ownership — even if you are the actual possessor. As tportal.hr reports, the difference between the cadastre and the land registry is not just administrative — it can have serious legal consequences.

Building permit and market value

Without reconciled data, there is no building permit. The competent authority simply cannot confirm that you are building on a plot that legally belongs to you. In addition, experienced buyers and their lawyers immediately recognize disordered documentation — and ask for a discount that can be up to 15–20% of the market value.

Disordered papers are not just an administrative nuisance — they are a financial and legal bomb with a delayed fuse.

Fortunately, you can check the status of your properties today quickly and for free through digital tools — which is discussed in the next section.

How to check the status online: A guide to the 'Uređena zemlja' portal

Before you embark on any reconciliation process, it is worth taking one simple step — check the current status from the comfort of your own home. The 'Uređena zemlja' portal (available at oss.uredjenazemlja.hr) allows all citizens quick access to cadastre and land registry data through a unified interface, known as OSS (One Stop Shop).

How to search for data?

The search is intuitive. You can search by:





plot number (broj čestice) — enter the cadastral municipality and plot number



possessory list — useful if you already have a document from the cadastre

The system then displays data from the Joint Information System (ZIS) — an integrated database that combines data from the State Geodetic Administration and land registry courts. This is precisely where the cadastre vs. land registry differences become visible: if the data are not reconciled, ZIS will show discrepancies in the area, shape of the plot, or registered owner.

Informative view vs. legally valid extract

This distinction is often overlooked, but it is crucial. The informative copy available online is free and useful for your own checks, but it has no legal force in proceedings before a court or notary. For sales, mortgages, or inheritance, a certified land registry extract, issued officially, is always required.



An informative view reveals the problem, but does not solve it — for the legal security of the property, certified documents and formal proceedings are necessary.

Once you have determined that discrepancies exist, the natural question arises: what next? The answer lies in concrete reconciliation steps.

Steps for reconciliation: How to get 'clean papers'

After you have identified a discrepancy between cadastral and land registry data, the logical question is: how to resolve it? The reconciliation process has clear steps, but requires patience and coordination with several institutions.

1. Engaging a certified surveyor

The first and most important step is to engage a certified surveyor who prepares a geodetic elaboration — an official document that precisely describes the actual situation on the ground. The surveyor measures the plot, determines the boundaries, and documents all relevant data. Without this elaboration, no further proceedings are possible. The cost of preparation typically ranges from 300 to 800 euros, depending on the complexity of the case and the size of the property.

2. Individual correction procedure

When the difference between the records is not the result of an error, but of an inherited situation, the Individual Correction Procedure (PIP) is applied. This administrative mechanism allows for the reconciliation of data between the cadastre and the land registry without lengthy court proceedings. In practice, this procedure resolves most cases where the possessory list vs. ownership list shows a discrepancy in the area or shape of the plot.

3. Submission to the land registry court

The geodetic elaboration, along with supporting documentation, is submitted to the land registry court. The court verifies the validity of the request and, if everything is in order, issues a decision on reconciliation. The process can take from several weeks to several months, depending on the court's workload and the complexity of the case.

Key takeaways

Reconciling the cadastre and the land registry is not a one-time expense — it is a long-term investment in the legal security of your property.





Engage a surveyor as soon as possible



Check the status via the 'Uređena zemlja' portal before starting the procedure



Budget for total costs of 500 to 1,500 euros

Sorted papers mean fewer obstacles when selling, inheriting, or obtaining mortgage financing — it is worth taking the first steps today.