Canadian home prices did not double by accident.

A new CP24 report on CMHC research looks at why Canadian house prices have climbed faster than prices in many other developed countries since 2005. The short version is not one single culprit. CMHC points to a long stretch where demand kept building faster than new housing could keep up.

That matters because it changes how we talk about affordability. It is not just about one rate cycle, one government policy, or one hot spring market. The pressure built over years.

For buyers, sellers, and homeowners in the GTA, the key is to understand the bigger pattern without pretending one national study explains every local street, condo tower, or bidding situation.

The Big Issue Is Demand Outpacing Supply

CMHC’s research, as reported by CP24, says Canadian home prices have more than doubled since 2005. One of the clearest data points is from 2023 and 2024, when Canada added nearly five new residents for every housing completion.

That ratio tells a simple story. If population grows quickly and housing completions do not rise at the same pace, pressure builds somewhere. It can show up in purchase prices, rents, bidding behaviour, crowding, delayed household formation, or all of the above.

CMHC also points to low borrowing costs and rising incomes as part of the picture. Cheap money made larger mortgages easier to carry for a period of time. Higher incomes gave some households more buying power. But when more people can buy, and there are not enough homes available, prices tend to move.

The important part is that CMHC is describing a long-running imbalance. Rates matter, but rates are not the whole story.

Why Canada Stands Out Compared With Other Countries

The comparison with other developed countries is useful because Canada was not the only place dealing with population growth, low rates, and changing household demand.

According to CP24’s summary of the CMHC work, Canada, Australia, and Sweden saw only modest price declines during the 2008-09 global financial crisis, then prices continued rising for years afterward. The United States had a much sharper housing correction during that period.

CMHC’s point is that even if Canada had seen a correction closer to the U.S. experience, Canadian prices would still have been among the faster-growing internationally. That suggests the affordability problem cannot be pinned entirely on one missed correction or one moment in time.

It also explains why buyers can feel confused by the headlines. One year, the story is rates. Another year, it is immigration. Another year, it is zoning, construction costs, investor demand, or income growth. The reality is that housing affordability usually gets stretched when several pressures stack on top of each other.

That is less satisfying than blaming one thing, but it is more useful.

What This Means for Toronto and the GTA

The CP24 article notes that affordability pressure started showing up in Vancouver in the early 2000s, then reached Toronto in the early 2010s before spreading to other major cities.

That timeline lines up with what many GTA buyers experienced. A detached home in Toronto, Mississauga, Brampton, Vaughan, or Oakville slowly moved from expensive to out of reach for many households. Then the pressure moved into townhomes, condos, and rental housing.

But we should be careful with what this specific article can and cannot tell us. It does not include the full CMHC report, and it does not provide a GTA-specific breakdown ranking which factor mattered most locally. It cannot say, for example, exactly how much of Toronto’s price growth came from population growth versus rates versus incomes versus land constraints.

What it can do is give us the broader context. Toronto’s affordability problem was not sudden. It was part of a national and international pattern, with local intensity.

That matters when people ask whether prices can simply “go back to normal.” Normal depends on supply, demand, wages, rates, and policy. If the supply gap remains, lower prices in one cycle do not automatically fix affordability over the long run.

Why Buyers Should Not Read This as a Forecast

A report like this helps explain the past. It does not give anyone a guaranteed forecast for the next six months.

Prices can still soften when borrowing costs rise, inventory builds, or buyers step back. We have seen that in parts of the GTA. A long-term supply issue does not mean every property is worth any price, or that every purchase is safe at any budget.

For buyers, the practical takeaway is to separate the big picture from your personal numbers. Canada may have a structural housing shortage, but your mortgage still has to work month by month.

That means stress-testing your payment beyond the pre-approval number. It means looking at property taxes, condo fees, insurance, utilities, repairs, and renewal risk. It also means being careful about stretching just because the long-term story sounds supportive for housing.

For sellers, the same logic applies in reverse. Long-term demand pressure can support values, but it does not override local inventory, presentation, pricing, or buyer affordability. A home still has to compete with what else is available that week.

The Real Affordability Fix Is Not Quick

If CMHC’s research is pointing in the right direction, then Canada’s affordability issue needs more than temporary relief.

Lower rates can help monthly payments. Buyer incentives can help some households get into the market. But if the country keeps adding people faster than it adds homes, the pressure does not disappear. It moves around.

More housing completions matter. So do approvals, infrastructure, labour capacity, financing conditions for builders, and the types of homes being built. A million-dollar detached home, a rental apartment, a laneway suite, and a starter condo all solve different pieces of the problem.

That is why affordability is so hard to fix. It is not one lever.

The takeaway: CMHC’s research is a reminder that Canada’s price surge was built over years of demand running ahead of supply. For households, the smart move is not to wait for one headline to fix the market. It is to understand the pressure, know your numbers, and make decisions that still work if conditions change.