Hidden defects when buying Dutch commercial property

In short

Under Dutch law a commercial building must have the qualities the buyer was entitled to expect on the basis of the purchase agreement, including suitability for normal use. Whether a defect is for the seller's account depends on the contract, notably as-is clauses, age clauses and warranties, and on the balance between the seller's duty to disclose and the buyer's duty to investigate. A buyer who discovers a defect must complain in writing within a reasonable time and then watch the two-year limitation period, or all rights are lost. The outcome is usually financial: repair, a price adjustment or damages.

What counts as a hidden defect under Dutch law

The legal anchor is the conformity requirement of article 7:17 of the Dutch Civil Code: the building must conform to the agreement and possess the qualities the buyer was entitled to expect, including suitability for normal use. A hidden defect is a defect that was not apparent at the time of the purchase and that defeats that expectation. Typical examples are foundation problems, serious leakage, soil contamination and structural defects.

What the buyer was entitled to expect is coloured by all the circumstances: the age and the price of the building, the intended use the seller knew about, the statements made during the sale and the clauses in the purchase deed. Visible or knowable defects, such as the broken gutter every viewer could see, fall outside the doctrine: the buyer is taken to have accepted them. In practice the dispute is almost always about what sat beneath the surface: foundations, soil, asbestos, installations and structure.

The seller's duty to disclose versus the buyer's duty to investigate

Dutch law balances two duties. The seller must disclose what he knows and what is relevant to the buyer, the disclosure duty (mededelingsplicht). The buyer must investigate what can reasonably be investigated, the investigation duty (onderzoeksplicht). A neglected investigation does not automatically release the seller: the weighing depends on all the circumstances of the case, but a seller who stayed silent about a defect he knew of is usually in a weak position.

With commercial property, serious investigation is expected of the buyer, certainly of a professional buyer or one assisted by advisers. A building survey, a review of maintenance and inspection reports and, where there is reason for doubt, soil and installation surveys are part of that. Against this stands the seller who had concrete knowledge of a defect and concealed it, or who answered specific questions incorrectly: as a rule he cannot hide behind the buyer's failure to investigate. Both sides are well advised to document their position: the seller what was disclosed, the buyer what was asked and investigated.

The contract usually decides: as-is clauses, age clauses and warranties

In commercial transactions the allocation of defect risk is largely contractual. An as-is clause places the risk of the building's condition on the buyer. An age clause (ouderdomsclausule) lowers the expectations a buyer may have of an older building. Specific warranties, for example on the soil condition, permits or the roof, place risks back on the seller and prevail over general exclusions. Between professional parties this contractual freedom is broad, and exclusion clauses will in principle hold up.

The wording still has limits. Clauses are interpreted according to what the parties could reasonably have understood: a general as-is provision does not automatically cover a defect that makes normal use impossible, and the courts read age clauses restrictively, covering defects genuinely related to the building's age but not, without more, defects from a recent renovation. Where the seller knew of the defect and concealed it, reliance on such a clause may be unacceptable, although the buyer must be able to prove that knowledge concretely. Buyers and sellers alike should treat these clauses not as boilerplate but as the real price negotiation.

The complaint duty and the two-year limitation period

The most underestimated rule in Dutch defect disputes is the complaint duty (klachtplicht). A buyer who discovers a defect, or reasonably should have discovered it, must complain to the seller within a reasonable time. A buyer who complains too late loses all rights in respect of that defect, including the right to damages. In a commercial purchase there is no fixed period: what counts as reasonable depends on the circumstances, including the prejudice the seller suffers from a later complaint.

The safe route is simple: complain in writing as soon as the defect surfaces, even if its extent is still unclear, and follow the complaint with a proper investigation into its nature and scope. After the notification a limitation period (verjaring) of two years runs for the claim, a short period that must be interrupted in time, by a written act preserving the claim, for as long as the dispute continues. Many substantively strong claims have foundered on these two deadlines before a court ever looked at them.

Remedies: from repair costs to unwinding the purchase

The remedies run from performance, meaning repair by or at the cost of the seller, through damages and a price adjustment, to rescission (ontbinding) of the purchase or annulment for error (dwaling). Which route is realistic depends on the seriousness of the defect, the contractual risk allocation and what the buyer actually wants: keep the building or walk away from it.

A buyer who keeps the building is essentially arguing about money: repair costs, diminution in value and consequential loss such as lost rent during repair. A formal notice of default giving the seller an opportunity to repair is usually the first step. A buyer who wants out faces a higher bar: rescission requires a sufficiently serious failure, and with a repairable defect a court will sooner find repair or damages appropriate, while annulment for error requires an incorrect representation of the facts attributable to the seller. In practice most cases settle on an amount, and the quality of the technical file, expert reports and repair estimates above all, determines that amount.

Prevention: due diligence before signing

The best defect dispute is the purchase that was avoided, or the purchase deed that was properly negotiated. For commercial property that means due diligence beyond the viewing: a building survey, environmental investigation and a legal review covering permits, zoning and any existing leases. When the building is bought with tenants in place, the rent flows and the state of maintenance obligations belong in the investigation as well.

Let the findings flow back into the deed: an identified risk becomes a price component, a warranty, an indemnity or a condition precedent. Where the building changes hands as part of a share transaction, the playing field shifts to the warranties and indemnities in the share purchase agreement, a materially different dynamic that we describe in our article on selling commercial property in an M&A transaction (in Dutch).

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