Land and Mortgage Register in Poland (Księga Wieczysta): Complete Guide

The Land and Mortgage Register in Poland — known as Księga Wieczysta (KW) — is the definitive public record of real estate ownership, rights, and encumbrances in Poland. Before buying any property in Poland, checking the Księga Wieczysta is not optional — it is the fundamental due diligence step that reveals who actually owns the property, whether it has a mortgage, and whether any third parties have claims against it.

This guide explains how the Polish land register is structured, how to read it, what to look for, and how Polish law’s principle of “public faith in the register” protects buyers.

What Is the Księga Wieczysta and Why Does It Matter?

Poland’s Land and Mortgage Register system has existed in various forms for over a century. Today it is maintained digitally by regional district courts and is fully accessible online at ekw.ms.gov.pl — for free, to anyone.

The register operates on a key principle: the content of the register is presumed correct. Any person who relies on the register in good faith when purchasing a property is legally protected — even if the register contains errors. This “public faith” principle (rękojmia wiary publicznej ksiąg wieczystych) is the backbone of Polish real estate law and means that conducting a thorough KW check before every purchase is essential.

Key Facts: Land Register in Poland

The Four Departments of the Księga Wieczysta

Every KW is divided into four departments (działy), each recording different information:

Department I — Property Description

Contains: address, cadastral number, area, type of use (residential, agricultural, etc.), and rights connected with the property (e.g., easements that benefit this property). This is where you verify that the property being sold matches the register description.

Department II — Ownership

The most critical section: lists the current owner(s), their ownership shares, and the legal basis for their ownership (e.g., notarial deed from date X). Red flags here include: mismatch between who is selling and who appears as owner; co-owners whose consent may be required; ownership through inheritance that has not yet been formally confirmed.

Department III — Limited Rights and Claims

Records rights that burden the property: easements (e.g., right of way), usufruct rights, pre-emption rights (prawo pierwokupu), claims arising from preliminary agreements, and court enforcement notices. This section is often where the most serious risks hide. A pre-emption right in favour of a municipality, for example, can block your purchase. A court enforcement notice means the property may be subject to creditors’ claims.

Department IV — Mortgages

Lists all mortgages (hypotheki) on the property: the creditor, the secured amount, currency, and interest rate. Even if the seller tells you the mortgage has been paid off, the KW may still show it as active — because the bank has not yet filed for cancellation. A KW with an active mortgage requires careful legal handling to ensure discharge before or at the time of purchase.

How to Read the Księga Wieczysta Online

Access the register at ekw.ms.gov.pl. You will need the KW number (in the format XX/XXXXXXXXXX/X). Enter it in the search field to access the full register. The site is in Polish — ask your lawyer to review it with you or on your behalf.

Each section shows both the current state (treść aktualna) and the full history of entries (treść zupełna). For due diligence purposes, always review the full history — a previously struck-out mortgage may reveal past financial difficulties with the property.

What Your Lawyer Checks in the KW

CGO Legal’s real estate due diligence service includes a comprehensive KW review covering:

• Verification that the seller is the registered owner (Department II)
• Identification of all co-owners and confirmation that all have consented to the sale
• Review of all entries in Department III — particularly pre-emption rights, easements, and enforcement notices
• Analysis of all mortgages in Department IV and coordination with the seller’s bank for discharge
• Cross-referencing the KW with the cadastral register (ewidencja gruntów) to identify any discrepancies
• Checking for any pending applications (wnioski) that might change the register’s content after purchase

Cooperative Housing — The Special Case

A significant portion of Polish residential property — particularly older apartment blocks — consists of cooperative ownership rights (spółdzielcze własnościowe prawo do lokalu) rather than full ownership. These rights may or may not have a KW entry. Buying cooperative housing requires different due diligence: verification with the housing cooperative (spółdzielnia mieszkaniowa) in addition to or instead of the KW check. CGO Legal handles both types of transactions.

Frequently Asked Questions

Land Register in Poland: What Foreign Buyers Must Check Before Signing

The Land Register (Księga Wieczysta) is the single most important document in any Polish real estate transaction. Before any money changes hands or any preliminary agreement is signed, a thorough review of all four sections of the register is essential. Here is exactly what to look for — and what red flags mean in practice.

Section I — Property description. Confirms the address, area, and type of property. For apartments, this section also references the building’s general register. Check that the area and description match what is being advertised — discrepancies are not uncommon, particularly in older properties.

Section II — Ownership. Lists the current legal owner(s). Verify that the seller’s name matches exactly. If the property is co-owned (e.g. by a married couple), all co-owners must be parties to the transaction. Check whether the property is in the seller’s sole ownership or forms part of marital joint property (wspólność majątkowa małżeńska) — which requires both spouses’ consent to sell.

Section III — Encumbrances and restrictions. This is where problems hide. Section III may contain: easements (right-of-way, utility easements), lifetime usufruct rights (służebność osobista) granted to a third party — which give that person the right to live in the property — pending court applications, enforcement proceedings, or pre-emptive rights held by other parties. Any entry in Section III requires careful legal analysis before proceeding.

Section IV — Mortgages. Lists any mortgages (hipoteki) registered against the property. A mortgage does not automatically prevent a sale — but it must be discharged before or at the closing. The buyer’s legal team should confirm the exact outstanding balance, arrange for repayment from sale proceeds, and ensure the mortgage discharge application is filed with the court immediately after closing.

How CGO Legal Reviews the Polish Land Register for Foreign Buyers

At CGO Legal, a Land Register review is the first step in every property due diligence we undertake. The Electronic Land and Mortgage Register (EKW system at ekw.ms.gov.pl) is publicly accessible — but reading it correctly requires legal knowledge. An undisclosed lifetime usufruct right, an unrecognised enforcement proceeding, or a mortgage registered in a currency other than PLN can each fundamentally affect the value and usability of the property you are buying.

Our due diligence process delivers a written English-language report covering all four sections of the Księga Wieczysta, the building’s own register where applicable, and any additional searches (cadastral records, planning register, building permit history). For clients buying remotely through a power of attorney, this report is provided before any purchase decision is made — giving you the legal certainty to proceed or walk away.

If you are in the process of evaluating a property in Warsaw, Kraków, Wrocław or elsewhere in Poland, our real estate due diligence service gives you a complete legal picture before you commit.

Official Sources

• Electronic Land and Mortgage Register — ekw.ms.gov.pl
• Act on Land and Mortgage Registers and Mortgages — ISAP
• Polish Civil Code — ISAP

Related reading: Notarial deed in Poland | PCC tax when buying property in Poland | Buying an apartment in Poland as a foreigner