New website obligations for property developers: a practical checklist
Since 11 July 2025, property developers operating in Poland have been subject to detailed rules on publishing offer and price information online. Compliance requires more than a cosmetic update: the business needs a functional, maintainable and legally appropriate website.
Why do these rules matter?
Buyers previously encountered vague messages such as “price on request”, which made developments difficult to compare. The new transparency rules require covered offers to present specified information more openly. Customers gain easier access to prices, while developers need reliable data, publication and reporting processes.
What does the 2025 amendment require?
The Act of 21 May 2025 amended the Polish property-development framework by introducing online price-transparency duties for covered residential and single-family-home offers. The precise scope, dates and legal references should always be checked against the current consolidated legislation.
The rules include new sales as well as developments already on the market, subject to the applicable transition dates. Compliance covers not only publication but also keeping the information current and consistent with data transmitted to the central register.
Mandatory information on a property developer’s website
Under the amended rules, a covered property website needs to present the required offer and price information clearly. Key elements include:
- Relevant information from the prospectus. Make the required investment and developer information easy to find; a downloadable PDF can support the on-page presentation.
- Complete developer details. Include the legal name, tax identifier, registered address, sales-office address and current contact details.
- Exact development location. Give the address or a precise location description, ideally supported by a useful map or site plan.
- Gross price per square metre. Display the VAT-inclusive unit price clearly.
- Total gross price. Show the VAT-inclusive total so the buyer does not have to calculate it.
- Prices of associated spaces. Show separate prices for parking spaces, storage units or other additions where they are not included in the main price.
- Additional buyer costs. Explain any infrastructure contribution, administrative fee, utility surcharge or other compulsory charge.
- Price-change history. Preserve the required dated history rather than displaying only the latest amount.
- Lowest price before a reduction. Where promotional-price rules apply, present the required reference price for the preceding period.
Every price change should be dated, and the required historical prices should remain available on the website.
A website is a legal requirement, not an optional extra
The information must be published on the developer’s own or managed website; listings on external property portals are not a substitute. Relevant advertisements and sales communications should direct customers to that source, so the developer needs proper control of the website and its data.
Daily reporting to the central register
Where Article 19b applies, developers must transmit current price and offer data to the central register through the mechanism provided for data.gov.pl. A reliable implementation needs validation, logging and a clear response to failed submissions.
Consequences of non-compliance
Missing or outdated information may breach the applicable transparency and consumer-protection requirements. The Office of Competition and Consumer Protection (UOKiK) can investigate practices that infringe collective consumer interests.
Possible consequences include:
- an inspection and request for immediate remediation,
- administrative proceedings against the development company,
- a financial penalty under the applicable consumer-protection rules.
Enforcement action can also damage trust in the developer and the investment. Required information should therefore be complete, current and easy to find — with ownership and monitoring defined inside the organisation.
What should a modern property website provide?
A modern property website should support both compliance and sales. It needs to help buyers compare units, understand availability and make contact, while giving the developer a controlled way to manage the underlying offer. Useful features include:
- Interactive SVG site plan. Let users select a building or unit directly from the development plan and see its status, price and details.
- Property search and filters. Allow visitors to narrow the offer by area, number of rooms, price, floor and availability.
- A page for every unit. Present visualisations, floor plans, technical information, position in the building and the relevant price history.
- Promotion and price-history module. Record dated price changes and calculate the required reference price consistently.
- Prospectus PDF generator. Produce current documents from controlled investment data instead of maintaining multiple manual copies.
- Integration with data.gov.pl reporting. Validate and transmit the required offer data through the available interface, with logging and error handling.
- Offer-management panel. Give authorised staff a clear way to edit prices, availability and development stages without changing code.
How can Hypercon help?
For many developers, compliance work is also an opportunity to redesign the customer journey so the website supports property sales. Hypercon designs property websites from the ground up around structured offer data, maintainability and the applicable requirements.
Hypercon can:
- design and build property-developer websites around the required data and customer journey,
- adapt proven modules to the structure of a particular development,
- implement price lists, histories, prospectuses, search tools and reporting integrations,
- audit an existing platform and determine whether a safe adaptation or a rebuild is more appropriate.
See these ideas in our case studies for Zalewski, Propco and mEstate. Emperial also explains how an interactive map and focused campaigns supported property-development sales.
Do not leave implementation until the last minute
Price publication, historical data, prospectus information and register reporting form one operational process. Leaving implementation until the deadline increases the risk of incorrect data, failed reporting and rushed changes on a live sales platform.
The same project can improve the buying experience and strengthen trust in the development. If you need a professional implementation, contact us to discuss a solution that supports compliance, day-to-day offer management and sales.
Beyond formal compliance, the development website should generate enquiries, maintain customer interest and work with acquisition campaigns. See property-development marketing by Emperial.
Frequently asked questions
1. Do I need a website as a developer?
Yes, where the offer is subject to the amended rules. Required information must appear on the developer’s own or managed website; publication solely on external property portals is not sufficient.
2. Does the obligation also apply to investments already in progress?
The rules also covered developments already being marketed, subject to the statutory transition period. As those dates have now passed, existing offers should be checked for current compliance.
3. Do I need to show a full history of price changes for each property?
The required dated price history must be presented alongside the current price. A timeline or table is one practical way to make it understandable.
4. Does each promotion have to show the lowest price of the last 30 days?
Where promotional-pricing rules apply, display the required lowest reference price from the preceding period so the reduction can be assessed transparently.
5. What if I do not have technical capabilities to implement such functions on the current website?
Audit the existing platform first. If it cannot support structured unit data, price history and reliable reporting without fragile workarounds, a planned rebuild may be safer and more economical.
6. Can I use PDF instead of content on the website?
A prospectus may be available as a downloadable document, but the required offer, price and cost data should also be presented clearly in the form required on the website.
7. How often do I need to update the data on the website?
Keep the website and transmitted register data current at the frequency required by the Act. Automation can reduce manual work, but it must include validation and failed-submission monitoring.
8. Do I have to implement integration with the data.gov.pl system?
Where Article 19b applies, the required offer data must be transmitted to the central system. We can implement the integration as part of the website, including validation, scheduled delivery, logging and operational alerts.
9. Can I remodel the current page if I already have it?
Yes, if the current website has a suitable data model and can be extended safely. When prices and units are embedded manually across templates, adding history, reporting and promotion logic may require such extensive changes that a new platform is the more reliable option.
