Latent Defect
Learn what a latent defect is in Canadian real estate, when sellers must disclose it, and how buyers can protect themselves during inspection and purchase.
May 30, 2025
What is a Latent Defect?
A latent defect is a hidden flaw in a property that is not visible during a typical inspection and may affect its safety, use, or value.
Why Do Latent Defects Matter in Real Estate?
In Canadian real estate, sellers are legally obligated to disclose known latent defects that make the home unsafe or unfit for habitation. These cannot be easily detected by the buyer or inspector.
Examples of latent defects include:
- Mold behind walls
- Foundation cracks or structural instability
- Undisclosed water damage or past flooding
If the seller fails to disclose a known latent defect, they may face legal consequences. Buyers should include inspection conditions and seek professional advice for potential red flags.
Understanding latent defects protects buyers from surprise repairs and helps sellers meet legal disclosure obligations.
Example of a Latent Defect
After moving in, the buyer discovered black mold behind the drywall. The seller had not disclosed it, resulting in a legal claim for latent defect.
Key Takeaways
- Hidden flaws not visible in standard inspection.
- Must be disclosed if known.
- Can affect safety or habitability.
- May lead to legal action if concealed.
- Strong reason for buyer due diligence.
An overview of Hedge Road Landing. (Alliance Homes)
6525 Mississauga Road and its surrounding context. (RBC Capital Markets & CBRE)
Property details for 6525 Mississauga Road. (RBC Capital Markets & CBRE)
National average resale-price growth and housing-starts growth, smoothed over three months. The comparison illustrates the cycle; it does not establish how much a price change causes construction to change.
Trailing 12-month starts in centres of 50,000 or more remove the usual monthly seasonality. Ownership combines the homeowner and condominium categories; rental is shown separately.
Six-month averages of provincial starts, expressed at annual rates. The smoothing reduces the influence of individual apartment projects.
The same August benchmark compared with two different starting points. Three-month changes are not annualized.
Average sale prices show the difference in purchase costs across markets. They do not measure affordability relative to local incomes or construction costs.
Newfoundland and Labrador remains above its pre-pandemic sales pattern, but August activity was below last year. Historical lines retain their original release vintages.
Average and median describe different aspects of the same month’s transactions. Both are affected by the mix of homes sold.
Category averages compare different homes and locations; the gaps are not estimates of the cost to upgrade an otherwise identical property.
The five categories shown account for 5,000 of the board’s 5,057 sales. The remaining 57 transactions were in other housing categories.
Monthly observations are not seasonally adjusted. Active listings count properties available at month-end; they are not construction inventory.
Average and median prices share one dollar axis. These unadjusted transaction measures do not control for changes in the homes sold.
TRREB’s 416/905 categories compare the apartments sold in each area. The difference does not isolate a location premium for equivalent units.
Highlights from the Delta Golf & Country Club listing brochure. (Colliers)