Material Defect in a New-Build Flat in Poland: When Is It Serious Enough?

You've bought a flat from a developer in Poland. The contract sets out the price, payment terms, and finishing standard. Then you turn up for handover — and start wondering: is this an actual defect, or something you can just live with? The distinction between a minor defect and a material defect (wada istotna) matters a great deal. A material defect gives you the right to refuse handover or, in some circumstances, to withdraw from the contract. A minor defect doesn't. This guide explains what Polish law treats as "material", how to document it, and what your next steps might be — with no guarantee of outcome, because every case turns on its own technical and legal assessment.

This guide is general legal information, not legal advice. How the rules apply depends on the contract, the evidence, and the circumstances — including whether the matter is consumer, civil, or commercial in nature. If you need advice or representation, the matter should be assessed by a qualified Polish lawyer or the relevant specialist. Twoja Sprawa helps you organise the documents for that assessment.

What does Polish law say about a material defect?

The Act of 20 May 2021 on the Protection of Rights of Purchasers of Residential Premises (known as the "developer act", ustawa deweloperska) governs the handover procedure. However, the statute itself does not give a single, fixed definition of a "material" defect — this is a judgement call based on technical and legal analysis. What does that mean in practice?

A material defect is one that:

• prevents or seriously impairs using the flat for its intended purpose (e.g. cracks in load-bearing walls, water leaking through the ceiling, missing electrical wiring),
• poses a risk to the health or safety of occupants (e.g. mould throughout the flat, asbestos, missing fall-protection features),
• points to a serious structural or workmanship defect that will be expensive to put right (e.g. faulty foundations, foundation damage, errors in the gas installation).

By contrast, the following are usually treated as minor (non-material):

• small scratches or minor plaster cracks that are routine to fix,
• cosmetic shortcomings (e.g. a poorly fitted door, minor finishing details),
• small deviations from the agreed specification that are easy to correct.

Where exactly the line falls always depends on the specific circumstances, the contract with the developer, and a surveyor's assessment.

The procedure for a material defect under the developer act

Say you turn up for handover and spot problems. Here, in broad terms, is how the process runs:

1. Recording the defects in the handover report (protokół odbioru) — you and the developer (or their inspector) draw up a handover report together. You should note down every defect you spot — material and minor alike. This step matters a great deal, because anything left out of the report is much harder to prove later.

2. The developer's written statement — within a set period (commonly cited as up to 14 days, though the exact wording of the current provision should be confirmed with a lawyer), the developer sends you a written statement in which they either: - accept the defects, or - refuse to accept them, giving reasons.

⚠️ The exact deadline and procedure for material defects can vary — check the current wording of the act with a lawyer before relying on any specific figure.

3. If the defect is material — if the developer does not accept a material defect (or accepts it only partially), you may be able to: - refuse to complete the handover — the transfer of ownership to you is put on hold, - request a repeat handover once the defect has been fixed, - ask for an opinion from an independent surveyor (court-appointed or otherwise — the details need to be confirmed for your specific case).

4. Fixing the defects — as a general rule, the developer must fix accepted defects within roughly 30 days of the report being signed (the exact deadline should be checked against the current wording of the act). If that isn't possible, the developer must give another date, with reasons.

How do you document a material defect?

Documentation is essential. Keep hold of:

• dated photos and video showing the defects, ideally with a tape measure or ruler for scale, and compared against the contract/floor plan,
• the handover report, signed by both sides, listing each defect in detail,
• written correspondence from the developer — their statement accepting or refusing the defects,
• a surveyor's opinion, if you commission a technical assessment (e.g. from an engineer or building inspector),
• the contract and the agreed finishing specification — to compare against what was actually delivered,
• correspondence — emails and letters to and from the developer,
• construction records — such as the site log (dziennik budowy), if you have access to it.

Do you need a surveyor?

Polish law doesn't automatically require a surveyor's opinion, but getting one is strongly advisable whenever you and the developer disagree about whether a defect is material.

A surveyor (e.g. a rzeczoznawca majątkowy — a qualified property surveyor, a court expert witness, or a building inspector) will assess:

• whether the defect actually exists,
• whether it can be fixed within a reasonable time,
• whether it prevents normal use of the flat,
• whether it poses a safety risk.

A surveyor's opinion typically costs anywhere from a few hundred to several thousand PLN, depending on complexity — but it can be essential if the matter ends up in court. The court itself may also commission its own expert opinion.

When it's worth involving a lawyer

Consider getting professional advice when:

• the developer refuses to accept a defect you consider material,
• your view and the developer's view differ significantly on the scope of the problem,
• the issue turns into a technical-legal dispute (e.g. is a crack in a load-bearing wall material, or is the flat still usable?),
• the cost of repairs is high (in which case the cost of a surveyor's opinion is likely worth it),
• you're considering redoing the handover or withdrawing from the contract,
• you're unsure which provisions of the developer act apply, or what the relevant deadlines are.

When pursuing the matter may not make financial sense

It's worth pausing to think it through when:

• the defect is genuinely minor — and the cost of a surveyor's opinion and a legal fight would exceed the cost of simply fixing it,
• the developer accepts and fixes it promptly — in which case the matter is effectively closed,
• the contract limits your rights (e.g. "the developer is not liable for…") — this wording needs careful review,
• you're looking at a dispute stretching over many months or years — Polish courts can be slow, and that's time you won't get living in your own home in the meantime.

Common mistakes buyers make

• Not drawing up a complete handover report — anything left unrecorded is much harder to prove later.
• No photographic evidence — without photos, a surveyor or court will need an on-site inspection, which takes more time and money.
• Relying entirely on the developer's word — "they told me it wasn't serious" isn't evidence. Get it in writing.
• Missing deadlines — the developer act sets different time limits at different stages; missing one can weaken your legal position.
• Signing off the final handover report without addressing every defect — once the final handover is signed, claiming for defects afterwards becomes harder.
• Confusing "cosmetic" with "material" — minor cosmetic shortcomings are not grounds to refuse handover, but genuine structural damage is.

Checklist — what to prepare before meeting a surveyor or lawyer

• ☐ the contract with the developer (complete, with all annexes),
• ☐ the handover report (or a draft, if not yet signed),
• ☐ the developer's written statement (accepting or refusing the defects),
• ☐ dated photos and video of every defect,
• ☐ the finishing specification from the contract,
• ☐ all correspondence exchanged with the developer (emails, letters),
• ☐ proof of payment / mortgage agreement (if financially relevant),
• ☐ the building plan and site layout plan, if available.

Frequently asked questions

Can I refuse handover just because of small scratches? No. Small scratches are usually treated as minor, non-material defects. You can ask for them to be fixed as part of the ordinary snagging process, but you cannot refuse handover on that basis alone. Refusing handover is reserved for material defects — ones that seriously prevent normal use or create a safety risk.

What does "prevents normal use" actually mean? It means that, because of the defect, you can't live in the flat without a risk to your health or safety. Examples: the whole flat flooded by a leak, missing electrical wiring, or serious mould contamination. A small leak in one corner — annoying as it is — generally doesn't prevent use of the whole flat.

Can I handle the handover procedure myself, or do I need a lawyer? Polish law doesn't require legal representation for the handover procedure — you can handle it yourself. But if a dispute arises, it's worth having a specialist review the situation to make sure you're acting correctly and not losing any of your rights.

How much time do I have to report defects? Defects should be reported at the point of handover, in the report itself — that's when they get properly documented. If you spot something afterwards, you can still raise it in writing, but your legal position is weaker. The limitation period for statutory-warranty (rękojmia) claims relating to a property is 5 years and runs from the date of transfer — but noting the defect in the handover report remains your strongest piece of evidence.

Is a defect discovered after handover a lost cause? No. Even if you discover the defect after taking possession, you still have statutory-warranty (rękojmia) claims for defects in the property. The limitation period is 5 years (Article 568 of the Polish Civil Code). But you'll need to be able to show the defect already existed at the point of handover — which is exactly why photos and a surveyor's opinion matter so much.

Does the developer always have to fix the defect? If they accept the defect — generally, yes. But the contract may allow for other remedies (e.g. a price reduction instead of a repair). It all depends on the wording of the contract and the specific circumstances. If the developer refuses to accept the defect, that refusal itself needs to be challenged.

Related articles: - Developer Won't Fix Defects in Your New-Build Flat — What Can You Do? - Handover of a New-Build Flat: What Defects Should Go in the Report? - Developer Refused to Accept Snagging Issues — What Are Your Next Steps? - Statutory Warranty, Guarantee, or the Developer Act — Which Applies to Your Flat's Defects?

Last reviewed: 26 June 2026.