What is a hidden defect in real estate in Quebec… and what isn’t one?

What is a hidden defect in real estate in Quebec... and what isn’t?

You buy a property and, a few months later, you discover water intrusion, a crack, a foundation problem, or a defective component.

The reaction is almost instinctive:

“It’s a hidden defect!”

Maybe.

But a problem discovered after the purchase is not automatically a hidden defect.

In Quebec, the notion of hidden defect mainly comes from the legal warranty of quality provided for in the Civil Code of Quebec. For a defect to give rise to this warranty, several elements must be considered.

In this File #006 of Real Estate Investigations, let’s see how to better understand this expression that is sometimes used a bit too quickly.

What is a hidden defect?

Article 1726 of the Civil Code of Quebec essentially provides that the seller must guarantee the buyer against defects that existed at the time of the sale and that render the property unsuitable for the use for which it is intended, or that diminish its usefulness so much that the buyer would not have bought it—or would not have paid as much—had they known about them.

However, the seller is not obliged to guarantee a defect already known to the buyer, nor an apparent defect that a prudent and diligent buyer could have noticed.

Four major questions can thus be considered:

Was the problem hidden? Was it sufficiently serious? Did it exist at the time of the sale? Was it unknown to the buyer?

The word “hidden”, by itself, is therefore not enough.

What are the main criteria of a hidden defect?

To simplify the concept, let’s examine these four questions separately.

1. Was the defect hidden?

The problem must not have been apparent to a prudent and diligent buyer. The law does not require the buyer to be an expert in construction, but it takes into account what they could reasonably observe.

2. Was the defect sufficiently serious?

A small imperfection or a minor problem does not automatically become a hidden defect. The defect must be sufficiently significant to render the property unusable or to reduce its usefulness to the point where, if the buyer had known about it, they would not have bought it or would have offered a lower price.

3. Did the defect exist at the time of the sale?

This is a fundamental element. The problem — or its cause — must be prior to the sale. An event that occurs only after the transaction does not become a hidden defect simply because the buyer could not foresee it.

4. Was the defect unknown to the buyer?

A buyer who already knew about the problem can normally not later claim that it was a hidden defect for them.

That is why each situation must be analyzed according to its particular facts.

Is a problem discovered after purchase automatically a hidden defect?

No.

The date a problem manifests and the date its cause appeared are two different things.

Imagine a significant water intrusion occurring six months after buying a house.

If an expert determines that its cause existed at the time of sale, the quality warranty could potentially apply, if the other criteria are also present.

Conversely, if the problem results from a completely new event occurring after the transaction, the situation is different.

The OACIQ reminds us that the fact that a defect only manifests after the sale does not, in itself, eliminate the quality warranty.

So the origin of the problem and the available evidence become important.

Can a visible crack be a hidden defect?

Take another example.

During a property visit, a large crack is clearly visible on the foundation.

The buyer sees it but decides not to ask more questions or conduct further checks.

After the purchase, they discover that the situation is more serious than they believed.

Can we automatically conclude that it is a hidden defect?

No.

A visible clue can sometimes raise a duty to push the checks further. The OACIQ reminds that the buyer must act seriously and prudently and must not ignore signs that may justify additional verifications.

Again, it all depends on the facts.

Is normal wear-and-tear a hidden defect?

Not automatically.

A 25-year-old roof, an aging water heater, or a mechanical component nearing its normal lifespan does not automatically become a hidden defect simply because it must be replaced after purchase.

The age of the property, the age of its components, their apparent condition, the information provided before the transaction, and the verifications carried out must be considered.

Buying a used house does not mean buying a new house.

We must therefore distinguish a defect legally capable of falling under the quality warranty from aging or normal maintenance of a building.

Does a pre-purchase inspection eliminate the risk of hidden defects?

No.

A pre-purchase inspection is extremely useful, but it is not a guarantee against all future problems.

The OACIQ states that the inspector assesses visible elements of the building, including the structure, roof, plumbing, and electrical installation.

The practice standards for pre-purchase inspection also specify that an inspection is visual, not technically exhaustive, and does not involve destructive methods allowing, for example, to systematically look inside walls or ceilings.

However, a inspector can identify clues, recommend additional verifications, and help the buyer make a more informed decision.

In other words:

The inspection does not guarantee that no hidden defects exist.

But it remains an important step in the approach of a prudent and diligent buyer.

Should the seller have known about the defect?

This is a question that comes up constantly.

No, not necessarily.

In a sale benefiting from the legal warranty of quality, the seller can be held to the warranty even if they themselves were unaware of the defect. The OACIQ specifies that the seller’s ignorance of the defect does not, in itself, diminish the warranty.

However, if the seller knew about the defect or could not ignore it, the situation may have additional consequences. Article 1728 of the Civil Code provides, in these circumstances, for the repair of the prejudice suffered by the buyer, in addition to the restitution of the price within the framework provided by this article.

And when we talk about information deliberately hidden or distorted to influence the buyer’s consent, we can also enter another notion we have already addressed in Real Estate Investigations: fraud.

Who decides if a problem is really a hidden defect?

Neither the buyer, nor the seller, nor the broker can simply declare:

“It’s officially a hidden defect.”

When there is disagreement, the facts and the evidence must be analyzed.

Photos, videos, the pre-purchase inspection report, a professional appraisal, the seller’s Declarations, the building’s history, and certain communications between the parties can all become relevant.

In some situations, specialized expertise may be necessary to determine the nature of the problem, its gravity, and especially since when its cause exists.

If the parties fail to agree, the analysis by legal professionals and, ultimately, by the court may be necessary.

That’s why I like to summarize this part of the inquiry as follows:

Facts + evidence matter.

What to do when you discover a problem after the purchase?

There is here a very important element that I deliberately did not develop in the short video.

The Civil Code provides that the buyer who finds that their property has a defect must report it in writing to the seller within a reasonable time after discovery. When the defect appears gradually, the time limit begins from the moment the buyer could suspect its gravity and extent.

Thus, when a serious problem is discovered, improvising the next steps is generally not the best approach.

It may be prudent to document the situation, preserve the available evidence, and quickly seek the appropriate professional’s advice before undertaking major work, except obviously when urgent intervention is necessary to prevent further damage.

The broker can help locate some transaction-related documents and guide their client, but they do not replace the lawyer or the professional called to determine the course of action in a dispute.

And if the property was purchased without the legal warranty of quality?

That’s a major nuance.

The legal warranty of quality can be diminished or excluded by agreement. A sale “without legal warranty of quality” therefore significantly changes the protections for the buyer.

And a complete clause “at the buyer’s risk and peril” can have even more important consequences. The OACIQ notes that these clauses must be explained carefully and that a more thorough inspection becomes particularly important when a property is purchased without the quality warranty.

That deserves a study on its own.

And precisely…

this will be our File #007.

What to remember about hidden defects?

The best way to summarize this file is probably the simplest:

A hidden problem is not automatically a hidden defect.

For a problem to fall under the legal warranty of quality, several elements must be analyzed: its hidden nature, its severity, its existence at the time of the sale, the buyer’s knowledge, and the circumstances surrounding the transaction.

The pre-purchase inspection also plays an important role, but it cannot reveal the invisible.

And when a problem is discovered after a transaction, the facts, documents, and evidence become essential.

🔎 File #006: resolved.

Next investigation: Buying without legal warranty of quality: what does that really change?