A Silesian industrial site looked attractive on paper. The asking price was competitive, the location suited the buyer's logistics needs, and the title chain appeared clean. Then the environmental review began.

Environmental due diligence for Polish real estate uncovers contamination liabilities, regulatory restrictions, and remediation obligations that standard title searches miss entirely. Under Polish environmental legislation, a buyer who acquires a contaminated site may inherit full remediation responsibility – regardless of who caused the pollution. Early-stage environmental review is therefore not optional; it determines whether a transaction proceeds and on what terms.

This case study traces an anonymised acquisition of a former industrial property in the Silesia region. It sets out the background, the investigative strategy we deployed, the process we followed, and the transferable lessons for any buyer looking to buy property in Poland where environmental risk is a factor.

What was the background to this transaction?

The client – a logistics operator registered in Germany – had identified a brownfield site in Silesia as the target for a distribution centre. The site had operated as a chemical processing plant for several decades before being decommissioned. The seller presented a Phase I environmental report prepared eighteen months earlier, which noted "possible historical contamination" without quantifying it. That qualifier was the first red flag.

Polish environmental law administered through the Regional Directorate for Environmental Protection (Regionalna Dyrekcja Ochrony Środowiska, RDOŚ) places remediation obligations on current landowners. The Chief Inspectorate for Environmental Protection (Główny Inspektorat Ochrony Środowiska, GIOŚ) maintains a register of contaminated sites. Neither the seller nor the seller's broker had checked that register before marketing the property. Our team confirmed within 48 hours that the site appeared on the GIOŚ register – a fact the seller had not disclosed.

The buyer faced a binary choice: walk away or negotiate a transaction structure that allocated remediation risk fairly. Walking away was commercially unattractive; the site had genuine logistical advantages. We advised the client to proceed – conditionally – and designed a strategy around three pillars: full Phase II investigation, contractual risk allocation, and a remediation escrow.

  • Phase II soil and groundwater sampling across 14 test points
  • Historical land-use review covering records from the National Geodetic and Cartographic Documentation Centre (Centralny Ośrodek Dokumentacji Geodezyjnej i Kartograficznej, CODGiK)
  • Regulatory status check with RDOŚ and local planning authorities
  • Remediation cost estimate from an accredited environmental consultant
  • Contractual escrow sized to cover the P90 remediation scenario

How did the investigative strategy address FIDIC and commercial lease exposure?

Environmental findings do not stop at the boundary of a purchase agreement. For this client, the site acquisition was linked to a future construction programme governed by FIDIC conditions. Contaminated ground materially affects FIDIC contract administration: unexpected subsurface conditions trigger Clause 4.12 claims, and remediation delays cascade into programme overruns. Our environmental due diligence was therefore coordinated with the construction legal team from the outset – a step many buyers skip.

We also reviewed a draft commercial lease that the client intended to grant to a third-party occupier once construction was complete. A real estate lawyer Warsaw-based practice must ensure that lease clauses do not inadvertently transfer environmental liability to tenants or, worse, allow tenants to create new contamination events that the landlord cannot easily detect. We inserted a baseline environmental condition survey obligation into the lease, requiring the tenant to commission an independent survey within 90 days of handover. That survey would serve as the comparator if contamination were alleged at lease expiry.

The Phase II results, delivered within six weeks of instruction, confirmed hydrocarbon contamination in the upper soil horizon at concentrations exceeding Polish remediation standards by a factor of four. Groundwater showed lower but still actionable levels of chlorinated solvents. The remediation cost estimate ranged from PLN 3.8m at the optimistic end to PLN 7.2m under the P90 scenario. Those figures gave us the negotiating anchor we needed.

We secured a reversal of the initial purchase price allocation, achieving a price reduction exceeding PLN 4m for the client's Silesian acquisition in spring 2026. The seller funded the difference partly through a price adjustment and partly through a remediation escrow held by a neutral Polish notary for a period of 36 months.

What does the remediation process look like under Polish law?

Polish environmental legislation distinguishes between historical contamination and ongoing pollution. Historical contamination – the category applicable here – is governed by a remediation regime that requires the responsible party to submit a remediation plan to the relevant starosta (county executive). The plan must be approved before active remediation begins. Approval typically takes 60 to 90 days. Any buyer who closes a transaction without accounting for that window risks a construction programme that cannot start on schedule.

Once the remediation plan is approved, the landowner has a statutory deadline to complete works. Failure to meet that deadline exposes the owner to administrative fines and, ultimately, to the RDOŚ ordering compulsory remediation at the owner's cost. Personal liability does not arise in the same way as under insolvency law, but the financial consequences are comparable – costs that were not budgeted become unavoidable obligations.

Our team structured the transaction so that the seller retained formal responsibility for submitting the remediation plan before closing. This was achievable because the seller remained the registered owner during the conditional period. It shifted the 60-to-90-day approval wait onto the seller's timeline, not the buyer's. Closing occurred only after RDOŚ confirmed plan acceptance. The buyer's construction programme could therefore start within 30 days of title transfer.

What are the transferable lessons for buyers of Polish real estate?

Three lessons stand out from this matter. First, the GIOŚ contaminated-sites register is publicly accessible and takes under an hour to check. Failing to check it before signing a letter of intent is an avoidable error. It forfeits the buyer's strongest negotiating position – the moment before the seller knows the buyer is committed.

Second, environmental due diligence must be scoped to the intended use. A logistics operator building a distribution centre faces different regulatory thresholds than a residential developer. Polish remediation standards differ by land-use category. Industrial thresholds are higher; residential thresholds are stricter. A buyer who plans to change the use of a site must model remediation costs against the stricter standard, not the current one. That distinction can shift the remediation budget by millions of zlotys.

Our team obtained confirmation of the revised remediation standard applicable to the client's intended industrial use in Silesia, reducing the required scope of active remediation by approximately 30% compared with the residential threshold – a saving that preserved the commercial case for the acquisition.

Third, environmental risk allocation belongs in the sale agreement, not in a side letter. Provisions governing the escrow, the remediation plan submission obligation, the closing condition, and the post-closing monitoring regime must be drafted with precision. Vague language about "environmental representations" does not protect a buyer when a contractor hits contaminated soil six months after closing. For clients entering Poland for the first time, reviewing key lease review points for German tenants provides a useful parallel framework for understanding how Polish contractual risk allocation operates across real estate instruments.

Workforce considerations also arise in brownfield acquisitions. If the target site includes existing staff or service contracts, employment law obligations under Polish labour legislation must be assessed alongside the environmental file. Our employment practice – accessible through the employment law Poland page – regularly coordinates with real estate teams on TUPE-equivalent transfers and contractor arrangements on remediation projects. Similarly, buyers from the Gulf region entering the Polish market should review office lease review considerations for UAE tenants as a reference point for cross-border transactional norms.

What to prepare before environmental due diligence on a Polish industrial site:

  • Extract from the GIOŚ contaminated-sites register for the target parcel
  • Historical land-use records from CODGiK covering at least 30 years
  • Current local spatial development plan (miejscowy plan zagospodarowania przestrzennego) confirming intended use category
  • Any prior environmental reports held by the seller, with dates and scope clearly identified

Environmental complexity does not make a transaction impossible. It makes preparation non-negotiable. Every week of investigative work done before signing a binding agreement is worth more than a month of renegotiation after the fact.

Your specific transaction may involve contamination profiles, regulatory timelines, or escrow structures that differ materially from the scenario described here. The consequences of misallocating environmental risk in a Polish real estate deal are not easily reversed once title has transferred.

To receive an expert assessment of environmental risk in your Polish real estate transaction, contact info@kordeckipartners.com. If your acquisition involves a contaminated site, an active remediation plan, or a construction programme governed by FIDIC conditions, we will map the regulatory timeline, size the escrow, and draft the contractual protections – before you are bound.

Frequently asked questions

Q: How long does a Phase II environmental investigation typically take in Poland?

A: A Phase II investigation involving soil and groundwater sampling across a mid-sized industrial site generally takes four to eight weeks from instruction to final report. The timeline depends on the number of sampling points, laboratory turnaround, and whether additional hydrogeological modelling is required. Buyers should build this window into their letter of intent exclusivity period – typically 60 to 90 days – rather than compressing due diligence to meet an artificial closing deadline.

Q: Can a buyer in Poland contractually transfer environmental liability back to the seller after closing?

A: A common misconception is that contractual indemnities fully protect a buyer once title transfers. Under Polish environmental legislation, administrative remediation orders are directed at the current landowner, not the party who caused the contamination. A contractual indemnity from the seller is only as valuable as the seller's financial standing over the remediation period – which may span years. A remediation escrow held by a neutral notary is materially more protective than an unsecured indemnity.

Q: What is the cost of a Phase I environmental report in Poland, and who typically commissions it?

A: A Phase I report for a standard commercial or industrial site in Poland typically costs between PLN 8,000 and PLN 25,000, depending on site size and complexity. Sellers frequently commission Phase I reports before marketing. Buyers should treat a seller-commissioned report as a starting point rather than a definitive assessment: the scope, the accreditation of the author, and the date of the report all affect its reliability. Any report older than 12 months should be updated before reliance.

KORDECKI & Partners is a law firm based in Warsaw and Krakow, advising business clients across 30 jurisdictions. Our team combines expertise in Polish and international law with a practical approach to real estate transactions, environmental due diligence, and construction law. We work with Polish entrepreneurs, foreign investors, and in-house legal teams. To discuss your situation, contact info@kordeckipartners.com.

Disclaimer: This publication is provided for informational purposes only and does not constitute legal advice. The information herein should not be relied upon as a substitute for professional legal counsel tailored to your specific circumstances. KORDECKI & Partners assumes no liability for actions taken or not taken based on the contents of this material. For advice regarding your particular situation, please contact info@kordeckipartners.com.