09.04.2026 - Testowa
Buying an Apartment? Check How to Verify a Developer in KRS


Step 1: Initial Credibility Analysis – How to Check a Developer in KRS
The National Court Register (KRS) is a public database and the most important source of information about any legally operating business in Poland. You will find precise details about the company’s legal form, share capital, and authorized representatives.
To check a developer in KRS, use the free government search engine available at: https://wyszukiwarka-krs.ms.gov.pl/. Simply enter the company’s tax ID (NIP) or name to download an official extract and verify whether the entity is not currently in liquidation.
J.W. Construction emphasizes full transparency by providing all necessary registration data, allowing clients to quickly confirm the company’s stable legal structure.
Step 2: Financial Condition Analysis for a Safe Purchase
In the register extract, the most important sections are Sections III and VI.
Section III contains financial statements. If the company regularly files them and shows profits, it is a good sign. Analyzing these documents helps assess whether the developer has sufficient financial resources to complete construction without delays.
Section VI should be checked for any records of bankruptcy. The absence of such entries is a strong indication that you are dealing with a reliable partner.
You may also want to read our article “Buying an Apartment from a Developer Step by Step.”
Step 3: Verifying Credibility Through Industry Membership
Membership in reputable industry organizations is an additional sign of reliability and professionalism. Check whether the developer belongs to the Polish Association of Developer Companies.
Companies affiliated with such organizations must comply with codes of good practice. High standards of customer service and transparent cooperation are typical of market leaders.
Step 4: Check Customer Reviews Before Buying
The internet is a valuable source of information about a developer’s past projects. Browse forums and social media groups of residents from completed developments to learn how the developer responds to reported defects.
Also review announcements from the Office of Competition and Consumer Protection (UOKiK). This authority regularly monitors contract terms and penalizes companies using abusive clauses. The absence of such warnings indicates that the developer respects consumer rights.
Step 5: Visit the Construction Site and Inspect Quality
Before making a final decision, visit the investment site and check the progress of construction yourself. This allows you to compare visualizations with reality and assess material quality even before completion.
If you are wondering how to verify a developer before buying a house, one of the best methods is to evaluate site cleanliness and attention to construction details.
Remember, your future technical acceptance of the apartment will be much smoother if you ensure during construction that the developer uses modern and durable technologies.
FAQ – Frequently Asked Questions
How to check if a company is a developer?
Check its entry in the KRS and analyze the PKD (business activity codes). The company must have authorization to carry out construction projects and sell real estate on the primary market.
How to check a company in KRS?
Use the free search engine of the Ministry of Justice, enter the NIP number or company name, and download the official extract to verify its legal status and authorized representatives.
How to verify a developer before purchase?
Carefully analyze the information prospectus and check the company’s financial standing in public debtor registers. Visit completed developments to assess construction quality and finishing standards.
How to check a developer agreement?
Compare its provisions with templates published by UOKiK and ensure it includes references to the Developer Guarantee Fund. You can also consult the contract with a real estate lawyer.
How to check if a developer is trustworthy?
Verify membership in industry organizations and review the history of completed projects. A reliable company will always provide full legal documentation of the land and a valid building permit upon request.
