Housing price transparency in Poland: new obligations for developers and what follows from them

On 11 July 2025, an amendment to the Act of 20 May 2021 on the protection of the rights of buyers of residential units or single-family houses and the Developer Guarantee Fund – commonly known as the price transparency act – comes into force. Developers will have to publish the prices of all units on offer, and the data will also be sent to the government portal dane.gov.pl. The change matters not only to apartment buyers. For the first time, the market for multifamily development land gains a reliable, public reference point for valuation.

What exactly is changing

The new rules require developers to run a website and publish on it – openly and up to date – information about their offer. The obligation covers in particular:

• the price of the apartment or single-family house and the price per square metre of usable floor area,
• the prices of ancillary spaces and rights attached to the unit – including storage rooms and parking spaces,
• any other cash payments the buyer must make in connection with the contract,
• the price history of each unit, so that buyers can see whether and how the price has changed over time.

The data must also be sent to the dane.gov.pl portal, which means that asking prices for new apartments will become available in one place, in a standardised format. Publishing prices only on listing portals will not satisfy the act.

Compliance will be supervised by the President of the Office of Competition and Consumer Protection (UOKiK), who can impose fines. A discrepancy between the published price and the price offered in the contract may also give the buyer grounds for a claim.

From when

What it means for buyers

Buyers will be able to compare offers without having to contact sales offices. Transparency of additional costs – such as a parking space or a storage room – will make it harder to advertise an "attractive" price per square metre that turns out higher once mandatory items are added. The price history will show which projects are selling well and where developers are cutting prices or offering hidden discounts.

What it means for developers

For developers, it is above all a new operational obligation: keeping price lists up to date, archiving changes and transmitting data to the public portal. In a broader perspective, it means greater transparency of competition – every market participant will see the prices at which a neighbouring project is selling and how quickly it changes them.

What it means for the market for multifamily development land

From the perspective of transaction advisory on land sales, this is one of the most interesting changes of recent years.

The value of a plot is based on apartment prices. A developer values land using the residual method: from the expected revenue from apartment sales, it deducts construction costs, financing and its margin. What remains is the maximum price it can pay for the plot. Until now, the landowner had to take the developer's word for which sale prices were realistic in a given location.

Public prices strengthen the seller's position. Public price lists make it possible to verify independently how much apartments in the immediate vicinity of the plot sell for, and to relate this to the assumed buildable capacity (usable floor area, PUM). Negotiating the land price stops being a conversation in which only one side knows the market.

The analysis still requires experience. An asking price is not a transaction price, and the price list of one project does not reflect the potential of another plot – differences in specification, location within the district, timing or unit mix can be significant. Data from dane.gov.pl is therefore a valuable starting point, but it does not replace an analysis of the specific property.

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