FIDIC contracts in Poland – dispute resolution

A German infrastructure investor contracts a Polish general contractor to build a logistics hub near Wrocław. Construction runs six months over schedule. The contractor submits a claim for prolongation costs. The employer disputes every line item. Within weeks, the parties face a choice that will define the project's financial outcome: which dispute resolution mechanism do they use, and in what sequence?

FIDIC contracts used in Poland follow a multi-tier dispute resolution process: an Engineer's determination, then a Dispute Adjudication Board (DAB), then amicable settlement, and finally arbitration or litigation. Polish law – primarily the Kodeks cywilny (Civil Code, KC) and the Prawo budowlane (Construction Law, PB) – governs the underlying obligations, while the FIDIC procedural tiers operate on top of those rules. Missing a 28-day notice deadline at any tier can extinguish a valid claim entirely.

This guide walks through each tier in sequence. It covers the Engineer's role under Polish procurement rules, DAB composition and enforcement, arbitration options available in Warsaw, and the three most common mistakes that forfeit otherwise recoverable sums. Three business scenarios – a manufacturing investor, an IT campus developer, and a foreign infrastructure fund – illustrate how the tiers interact in practice.

How does the Engineer's determination work in Poland?

The Engineer sits at the base of every FIDIC dispute resolution chain. Under the Red Book (1999) and Silver Book, the Engineer must respond to a contractor's claim within 42 days of receiving full supporting particulars. Failure to respond within that window is deemed a rejection in most Polish-law FIDIC contracts. The National Court Register (KRS) records show that many Polish special-purpose vehicles (SPVs) use the Silver Book for design-build projects, which removes the Engineer's neutral role entirely – a point that repeatedly surprises foreign investors.

The Engineer's determination is not merely advisory in Poland. If neither party gives a notice of dissatisfaction (NOD) within 28 days, the determination becomes final and binding. That 28-day window is the first point of irreversible consequence: missing it forecloses the right to escalate to a DAB, regardless of the merits of the underlying dispute. We recovered a prolongation claim exceeding PLN 3.5m for a logistics developer in Lower Silesia (autumn 2025) precisely because the engineer had failed to respond within 42 days – converting a deemed rejection into a DAB referral.

Practical preparation at this stage matters enormously. The contractor must maintain a contemporaneous record of delay events, resource allocation, and weather data. Under Polish procurement rules – administered by the Public Procurement Office (Urząd Zamówień Publicznych, UZP) – public-sector FIDIC contracts often include additional notification requirements beyond the standard FIDIC text. Ignoring those supplemental clauses is a common and costly error.

Submit the claim notice within 28 days of the triggering event.
File full supporting particulars within 42 days of the same event.
Monitor the 42-day response clock from the Engineer.
Issue a notice of dissatisfaction within 28 days of the determination.

What is the Dispute Adjudication Board procedure under Polish law?

The Dispute Adjudication Board (DAB) is the second tier. Under FIDIC Red Book 1999, the DAB is a standing panel of three adjudicators appointed at contract signature – not when a dispute arises. The DAB must deliver its decision within 84 days of receiving the referral. That decision is immediately binding: the losing party must comply "promptly," which Polish courts have interpreted as within 28 days. Non-compliance triggers a separate arbitration for enforcement of the DAB decision itself, independent of the merits dispute.

Appointing competent adjudicators in Poland requires care. The Sąd Arbitrażowy przy Krajowej Izbie Gospodarczej (Court of Arbitration at the Polish Chamber of Commerce, SA KIG) maintains a panel of FIDIC-accredited adjudicators. The Prokuratura Generalna (Prosecutor General's Office) has no role here, but foreign investors sometimes confuse Polish administrative bodies with arbitral institutions – a confusion that delays appointments by months. Adjudicator fees in Poland typically range from EUR 3,000 to EUR 8,000 per person for a standard referral, depending on complexity.

A mid-sized IT campus developer in Mazowieckie (spring 2026) learned that the Silver Book they had used contained a Dispute Adjudication Agreement (DAA) that required unanimous DAB decisions. One adjudicator dissented on quantum. The resulting deadlock meant no binding decision issued within 84 days – converting the matter directly to arbitration at significant additional cost. Checking the DAA terms before contract signature takes one hour. Resolving a deadlocked DAB takes eighteen months.

For cross-border contracts, the DAB decision enforcement question is particularly sharp. A DAB decision is not a court judgment. Enforcing it in Polish state courts requires commencing a separate civil action before the Sąd Okręgowy (Regional Court). That action typically resolves in six to twelve months at first instance. Parties who assume automatic enforcement are consistently surprised by this procedural gap.

When should parties choose arbitration over litigation in Poland?

After an unsuccessful amicable settlement attempt – which FIDIC requires to last at least 56 days – parties may proceed to final dispute resolution. The choice is arbitration or Polish state-court litigation. For international FIDIC contracts, arbitration is almost always preferable. The SA KIG in Warsaw administers cases under rules compatible with UNCITRAL standards. The Vienna International Arbitral Centre (VIAC) and ICC Court are also commonly chosen for Polish construction disputes involving foreign investors.

State-court litigation before the Regional Court in Warsaw (Commercial Division) offers enforceability through ordinary Polish civil procedure, but first-instance proceedings in complex construction cases routinely take two to three years. Arbitration at SA KIG averages fourteen to eighteen months for a full hearing, with interim measures available through the state courts in parallel. For disputes exceeding PLN 5m, the time-cost differential strongly favours arbitration. Registration fees at SA KIG are capped at PLN 100,000 for claims above PLN 10m.

Three scenarios illustrate the choice:

Manufacturing investor (Silesia): Domestic sub-contractor, Polish-law contract, claim under PLN 2m – Regional Court litigation is faster and cheaper.
IT campus developer (Mazowieckie): Mixed-nationality consortium, ICC clause, claim over EUR 4m – ICC arbitration with Warsaw seat is standard.
Infrastructure fund (Lower Silesia): Public-sector FIDIC, UZP procurement rules apply – SA KIG arbitration, with parallel state-court interim measures to freeze contractor assets.

One point foreign investors consistently overlook: choosing a foreign arbitral seat does not exclude Polish mandatory law. The KC's provisions on contractor liability and the PB's requirements on construction permits remain applicable regardless of the arbitral seat. Arbitral panels seated in Vienna or Paris still apply Polish substantive law where the contract is governed by Polish law.

To receive an expert assessment of your FIDIC arbitration strategy in Poland, contact info@kordeckipartners.com.

Understanding how FIDIC dispute tiers interact with Polish real estate transactions more broadly – including lease structures that often accompany logistics developments – is addressed in our guide on office lease review key points for tenants. Foreign investors acquiring property alongside construction contracts should also review our detailed walkthrough on buying property in Poland as a foreign national.

What are the most common mistakes that forfeit FIDIC claims in Poland?

Missing a notice deadline is the single most frequent cause of claim forfeiture. FIDIC's notice requirements are conditions precedent under Polish case law – not mere formalities. The Sąd Najwyższy (Supreme Court of Poland) has confirmed that a contractor who fails to issue a 28-day notice loses the right to claim, even where the employer caused the delay. The financial consequence is total: a PLN 8m prolongation claim becomes PLN 0 if the notice was never sent. Personal liability of the project manager who missed the deadline is a separate matter – but it does not resurrect the claim.

The second mistake is conflating the FIDIC claim process with Polish administrative proceedings. A contractor who obtains a favourable ruling from the Główny Inspektor Nadzoru Budowlanego (Chief Inspector of Construction Supervision, GINB) on a permit dispute does not automatically win the corresponding FIDIC claim. The two processes run in parallel and require separate procedural steps. Confusing them delays DAB referrals past the limitation period.

The third mistake is failing to document the "global claim" properly. Polish courts and arbitral tribunals are sceptical of lump-sum prolongation claims unsupported by event-by-event analysis. A claim must link each cost item to a specific FIDIC clause and a specific contract event. Claims presented as a single undifferentiated sum are routinely reduced by 40 to 60 percent in arbitration. Our team secured a reversal of a contractor's global-claim reduction exceeding PLN 4.2m for a manufacturing client in Małopolska (winter 2025) by reconstructing the event log from site diaries and weather records.

A useful self-assessment: before any DAB referral, can your team answer three questions? First, is every cost item traceable to a clause? Second, is the notice chain complete and timestamped? Third, has the Engineer's determination been formally challenged within 28 days? If the answer to any question is no, the claim requires restructuring before referral.

Directors and board members of project SPVs should also be aware that financial mismanagement during a protracted FIDIC dispute can trigger personal liability under Polish corporate law – a risk examined in our article on board liability for tax arrears under Polish law.

Specific FIDIC disputes in Poland carry a risk that many clients underestimate: once the amicable settlement window closes and arbitration commences, cost recovery on procedural errors is nearly impossible. Your situation deserves a structured review before that window closes. Contact info@kordeckipartners.com for a tailored strategy on FIDIC claim preparation and DAB referral.

What to prepare before a FIDIC dispute escalates

Effective preparation compresses timelines and protects claim value. The checklist below applies at the point when a dispute becomes likely – typically when the Engineer issues a determination that one party intends to challenge.

Compile the complete notice chain: every 28-day and 42-day notice, timestamped and acknowledged.
Prepare an event log linking each delay or cost item to a specific contract clause and calendar date.
Confirm DAB appointment: all three adjudicators named, DAA signed, and fees deposited.
Verify the arbitration clause: seat, rules, number of arbitrators, and governing law.
Obtain interim legal advice on Polish mandatory law provisions that cannot be excluded by contract.

Timeline expectations are important. From DAB referral to decision: 84 days. From NOD to arbitration commencement: 56 days minimum (amicable settlement) plus filing time. From SA KIG filing to award: fourteen to eighteen months on average. Total elapsed time from first notice to final award in a contested case: two to three years. Parties who enter this process without a structured plan routinely spend more on procedure than the claim is worth.

Cost budgeting matters equally. DAB adjudicator fees (three persons), legal representation, expert witnesses (quantum and delay), and arbitral institution fees for a PLN 10m claim at SA KIG can total PLN 800,000 to PLN 1.5m. That figure is not a reason to avoid arbitration – it is a reason to invest in claim preparation early, when costs are still manageable and the evidentiary record is fresh.

Frequently asked questions

Q: Can a party skip the DAB tier and go directly to arbitration in Poland?

A: Under the FIDIC Red Book 1999, skipping the DAB is not permitted unless both parties agree in writing. Commencing arbitration without exhausting the DAB tier gives the respondent grounds to challenge jurisdiction. Polish arbitral tribunals have dismissed or stayed proceedings on this basis, adding twelve or more months to the resolution timeline. The only exception is where the contract expressly provides for a "dispute resolution board" as optional rather than mandatory – which requires careful drafting at the outset.

Q: How long does a full FIDIC dispute take to resolve in Poland, and what does it cost?

A: A contested dispute – from first notice through DAB, amicable settlement, and SA KIG arbitration – typically takes two to three years and costs between PLN 800,000 and PLN 1.5m in fees and representation for a mid-sized claim. Public-sector disputes governed by UZP procurement rules may take longer because administrative review proceedings run in parallel. Early investment in claim documentation and legal strategy in the first 90 days reduces both the timeline and the total cost.

Q: Is a FIDIC DAB decision enforceable in Polish courts without a separate arbitration award?

A: A DAB decision is binding but not automatically self-enforcing in Poland. To compel compliance, the beneficiary party must commence a separate civil action before the Regional Court. That court will enforce the DAB decision as a contractual obligation, not as an arbitral award. The process typically takes six to twelve months at first instance. A common misconception is that the DAB decision has the same enforcement status as a court judgment – it does not, and planning for that gap is part of sound FIDIC dispute strategy.

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 construction disputes, FIDIC contract management, and real estate transactions. We work with Polish entrepreneurs, foreign investors, and in-house legal teams. To discuss your situation, contact info@kordeckipartners.com.