Defects in newly built homes in the Netherlands: liability, deadlines and remedies

In a newly built Dutch home it is the building contractor, not the seller of the plot, who answers for construction defects, and since 1 January 2024 that responsibility also covers defects you did not notice at delivery unless the contractor proves they cannot be attributed to him. What decides your position in practice is the delivery report, how quickly you complain in writing, and whether the home is covered by a guarantee scheme such as Woningborg or SWK. Article 7:761 of the Dutch Civil Code sets the outer limits: a claim expires two years after you protested and, for a building, in any event twenty years after delivery.

This article sets out how liability for defects in newly built homes is arranged under Dutch construction law, which deadlines run, what the Wet kwaliteitsborging voor het bouwen changed, and what you should do when a defect appears.

How a new build purchase is put together

A new build home is almost always bought under a koop- en aannemingsovereenkomst: a single document containing two different agreements. The purchase of the plot is a sale of immovable property, transferred later by notarial deed, and the construction of the house is a contract for work governed by articles 7:750 and following of the Dutch Civil Code. That split matters, because the two halves carry different rules and different counterparties. Questions about the ground, the title and the boundaries belong to the seller and to real estate law; questions about the house itself belong to the building contractor.

Because the sale half concerns a dwelling bought by a consumer, it must be in writing and article 7:2 of the Dutch Civil Code gives the buyer a statutory reflection period of three days after receiving a copy of the signed agreement. Most model contracts used for new build extend that period. Use it: once the reflection period has run, the technical description, the drawings and the payment schedule are fixed, and they are the yardstick against which every later complaint is measured. A review before you sign is worth considerably more than a dispute afterwards.

One warning about the paperwork. Clauses that belong to the sale of an existing house, such as an ouderdomsclausule limiting liability for age related wear or a niet-zelfbewoningsclausule used by a seller who never lived in the property, have no place in a new build contract and should not be copied into one. If you meet them in a preliminary purchase agreement for a house that has not yet been built, ask why they are there.

What counts as a defect in a new build home

A defect is any respect in which the delivered work falls short of what the contract, read against the applicable building rules, entitled you to expect. There is no separate statutory catalogue of defects for new build; the yardstick is the agreement itself, in particular the technical description and the drawings, supplemented by the public law building requirements. Those requirements are now set out in the Besluit bouwwerken leefomgeving, which replaced the Bouwbesluit 2012 on 1 January 2024 when the Omgevingswet came into force. A house that meets the drawings but not the building rules is still defective.

The classic distinction is between visible and hidden defects, and it is a distinction about the moment of delivery rather than about the seriousness of the problem. A cracked tile, a badly hung door, a scratch in a window frame: these are things a reasonably attentive buyer can see when walking through the house. Faulty wiring behind plasterboard, a leaking pipe in a floor screed, insufficient reinforcement in a foundation: these are hidden defects that only announce themselves later, sometimes years later. Where the line falls in a given case is a question of fact, and it is decided largely by what the delivery report records.

Not every imperfection is a defect that gives you a remedy. The work must be fit for normal use as a dwelling and must match what was agreed, but minor deviations that do not affect use, value or safety will rarely justify more than repair. At the other end of the scale sit serious defects: subsidence and foundation movement, load bearing elements that do not perform, roof structures at risk, water ingress through failed detailing or membranes, and installations that are unsafe. These are the cases in which the long stop periods and the guarantee schemes matter.

For the plot itself the test is conformity: article 7:17 of the Dutch Civil Code requires the immovable property delivered to possess the qualities the buyer was entitled to expect. That is the route for problems such as contaminated soil or a title restriction, not for a leaking roof. Note that the two month complaint rule of article 7:23 of the Dutch Civil Code applies to consumer purchases of movable goods and not to the purchase of a house; for a home the standard is that you must complain within a reasonable time.

What the Wet kwaliteitsborging voor het bouwen changed

The Wet kwaliteitsborging voor het bouwen (Wkb) entered into force on 1 January 2024 and is the single most important change for buyers of new build homes in years. It has a public law half and a private law half, and they have different scopes.

The public law half introduced independent quality assurance. For buildings in consequence class 1, which covers ordinary single family houses and smaller commercial premises, the municipal technical building assessment has been replaced by an independent kwaliteitsborger who checks during construction and issues a statement at completion. Extension of that regime to renovation work has been postponed and no date has been set; an evaluation of the system is planned for 2027. Until then, renovation continues under the previous municipal regime.

The private law half is the part that changes your rights, and it applies to construction contracts generally rather than only to consequence class 1. Four changes matter for a buyer.

• Liability for defects not discovered at delivery. Under article 7:758 paragraph 4 of the Dutch Civil Code the contractor remains liable after delivery for defects that were not discovered at that moment, unless those defects cannot be attributed to him. The burden therefore sits with the contractor, and for a consumer this rule is mandatory: it cannot be contracted away.
• A handover file. Article 7:757a obliges the contractor to give the client, at completion, a dossier showing that the work meets the agreed requirements, including drawings, calculations and information on materials and installations.
• A written warning duty. Article 7:757b requires the contractor to warn about inaccuracies in the assignment in writing, unambiguously and in good time, and to point out the consequences.
• Information about security. Article 7:765a requires the contractor to inform a consumer client in writing whether and how the work is insured or otherwise secured against defects and insolvency.

The Wkb also sharpened the rule on the retention money. Under article 7:768 of the Dutch Civil Code a consumer building a home may hold back the final five per cent of the contract price in escrow with the notary; the contractor must now inform the buyer in writing that this amount will be released only if the buyer does not object, and the notary must ask the buyer what should happen with it. Handing that five per cent over on the day of delivery removes your strongest practical lever, so treat the question seriously.

Delivery: the moment that fixes your position

Delivery, in Dutch oplevering, is the moment the contractor states the work is ready and the client accepts it. Article 7:758 of the Dutch Civil Code attaches two consequences to acceptance: the risk in the work passes to the client, and the contractor is discharged in respect of defects the client should reasonably have discovered at that moment. Since 1 January 2024 that discharge no longer extends to defects that were not discovered, but the point stands that everything you can see is your responsibility to record.

Take the inspection seriously and do not do it alone. An independent building inspector walking the house with you will see things a first time buyer will not, and the cost of that inspection is set by the market rather than by law, so it is worth comparing quotations. Test the installations, run the taps, open every window and door, check finishes and levels against the technical description, and photograph everything. If the house is not yet finished, an inspection before walls are closed is far more informative than one afterwards.

Every point you find goes into the delivery report, the proces-verbaal van oplevering, which both parties sign. That document is the evidential backbone of any later dispute: it fixes what was visible, what was agreed as outstanding work and by when it would be remedied. Do not sign a clean report because the contractor promises to sort things out informally, and do not accept a report that describes defects vaguely. Where the defects are so serious that the house cannot reasonably be used, you may refuse delivery altogether, but that is a decision with financial consequences and should not be taken without advice.

Under the model contracts used in the Dutch new build market a maintenance period of three months follows delivery. During that period the contractor must remedy the points listed in the delivery report and any further defects that come to light. The maintenance period is a contractual convenience, not a limitation period: when it ends, your statutory rights and any guarantee cover continue. This is also the stage at which due diligence pays for itself, and where the agreements between the developer and the contractors determine who you should actually be addressing.

How long the contractor remains liable

Two separate clocks run, and confusing them is the most common reason a good claim fails.

The first is the duty to complain. Article 6:89 of the Dutch Civil Code requires you to protest within a reasonable time after you discovered the defect or reasonably should have discovered it. There is no fixed period of two months here; what is reasonable depends on the nature of the defect, the investigation it required and the position of the contractor. What is certain is that silence is fatal: a buyer who lives with a leak for two years before raising it will struggle, whatever the merits.

The second is limitation. Article 7:761 of the Dutch Civil Code provides that any claim in respect of a defect in delivered work expires two years after the client protested. If you set the contractor a period to remedy the defect, that two year period starts only when the period expires or when the contractor makes clear he will not repair. On top of that sits a long stop: the claim expires in any event twenty years after delivery in the case of a building, and ten years after delivery in all other cases. A running limitation period can be interrupted by a written demand under article 3:317 of the Dutch Civil Code, and if there is any doubt about the date, interrupting is cheap and losing the claim is not.

Note what these periods are not. They are not a promise that the contractor is liable for anything at all for twenty years; they only mark the outer boundary within which a claim that exists can still be brought. Whether the claim exists at all still depends on whether the work fell short and whether the defect can be attributed to the contractor.

The Woningborg and SWK guarantee schemes

Most new build homes in the Netherlands are sold with cover from a guarantee institute, in practice Woningborg or SWK. This is contractual protection alongside the statutory rules, not a substitute for them, and it is not automatic: check the contract to see whether the home is registered and ask for the certificate.

A scheme of this kind does two things. The waarborg protects you if the contractor becomes insolvent before the house is finished, by arranging completion or compensating the loss. The garantie covers defects in the finished home. Under the Woningborg new build regulation the quality guarantee starts three months after delivery, once the maintenance period has run, and then lasts six years for most elements. For serious defects, meaning defects that affect the soundness of the structure or make the dwelling unfit to live in, the guarantee runs for ten years. Cover passes to a subsequent owner if the house is sold within that period.

Two practical points. First, the guarantee has its own notification procedure and its own deadlines, which run independently of the statutory ones, so a complaint under the scheme does not by itself preserve your claim against the contractor and the reverse is equally true. Second, the schemes exclude a good deal: normal wear, work you or a third party carried out yourself, and consequential damage are usually outside the cover. Read the regulation that applies to your certificate rather than a general summary of it.

Reporting a defect and enforcing your claim

Start in writing, and start early. Describe the defect, when and how it appeared, refer to the technical description or the drawing it departs from, and set a concrete and reasonable period for repair. A letter of that kind is a notice of default under article 6:82 of the Dutch Civil Code, and it is what puts the contractor in default if the period passes without action. Send it by registered post or by email with a delivery confirmation, and keep the whole file: photographs with dates, correspondence, the delivery report and the handover dossier.

If the contractor disputes the cause, an independent expert report is usually decisive, because most construction disputes turn on causation rather than on law. Where a report obtained by one party is unlikely to be accepted, Dutch procedure allows you to apply to the court for a provisional expert examination, and where the facts depend on what was said or done on site a preliminary witness examination can secure the evidence before proceedings begin.

Once default has occurred you can demand repair, carry out the work yourself and claim the cost as damages under article 6:74 of the Dutch Civil Code, or in serious cases dissolve the contract under article 6:265. You may also suspend payment of instalments that are still due, which in a new build project is often the most effective pressure available.

Where the dispute goes depends on the contract. New build contracts commonly designate the Raad van Arbitrage in bouwgeschillen, the construction arbitration body, or the Geschillencommissie under the guarantee scheme. A consumer is not simply bound by such a clause: article 6:236 under n of the Dutch Civil Code requires that a consumer be given at least one month to choose the ordinary courts instead. If speed matters, for example with active water ingress, interim relief proceedings before the civil court remain available alongside any arbitration route. For a wider view of the options, see our overview of dispute resolution in the Netherlands and how Dutch construction law compares with international standards.

Mistakes that cost buyers their claim

The recurring errors are procedural rather than technical. Signing a clean delivery report on the strength of a verbal promise is the first, because it hands the contractor the argument that nothing was wrong. Releasing the five per cent retention on the day of delivery is the second. Assuming that a two month rule applies, or conversely that twenty years of unconditional protection applies, is the third; the real deadline is two years after your protest.

Two further mistakes concern the paperwork. Buyers routinely address the developer when the construction obligation sits with the contractor, or the other way round, and lose months doing so; the koop- en aannemingsovereenkomst tells you which is which. And buyers who let the property soon after delivery discover that a tenant complicates access for repairs and that tenant rights constrain what can be done and when. If letting is the plan, arrange for defect remediation before the tenancy starts.

Finally, do not treat the contract as boilerplate. Liability caps, exclusions for consequential loss and clauses shifting the risk of ground conditions are common, and although a consumer cannot be deprived of the mandatory protection in article 7:758 paragraph 4, a great deal else is negotiable. Rules on consumer protection in contracts and general contract review of the kind described in our guide to Dutch contract law apply here just as they do to commercial agreements, and a targeted contract review before signature is far cheaper than litigation.

What to do when a defect appears

Act on the day you notice it. Photograph the defect, note the date, and send the contractor a written complaint describing what is wrong and what you want done, with a reasonable deadline. Do not release retention money while the point is open, and do not let an informal promise take the place of a written acknowledgement. If the contractor disputes the cause, commission an expert before the trail goes cold.

The position is no different if you bought the property jointly or as a newcomer to the Netherlands. Our guidance on buying a house together and on purchasing a home in the Netherlands as an expat sets out the points that most often catch buyers out, and a real estate lawyer can tell you within a single meeting whether a defect is worth pursuing and against whom. If proceedings become unavoidable, a real estate attorney will run the claim from the notice of default through to arbitration or court.

Frequently asked questions

Buyers of newly built homes in the Netherlands have specific statutory protections and contractual guarantees when defects appear. The questions below cover the points that arise most often in practice.